Prof. Dr. Masri Ayob

Fax: +603-8921 6184 EMAIL: masri@ukm.edu.my

 

DATA MINING & OPTIMIZATION RESEARCH GROUP (DMO)

CENTER FOR ARTIFICIAL INTELLIGENT (CAIT)

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Publications

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Research Grants

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PUBLICATIONS

ISI JOURNALS

 

(2008-2015)

1.     Nasser R. Sabar, Masri Ayob, Graham Kendall and Rong Qu (2015). “A Dynamic Multiarmed Bandit-Gene Expression Programming Hyper-Heuristic for Combinatorial Optimization Problems”. IEEE Transactions on Cybernetics.  (DOI:10.1109/TCYB.2014.2323936), 45(2), 217-228.

2.     Nasser R. Sabar, Masri Ayob, Graham Kendall and Rong Qu (2015). “The Automatic Design of Hyper-heuristic Framework with Gene Expression Programming for Combinatorial Optimization problems”. IEEE Transactions on Evolutionary Computation, 19(3), pp. 309-325, IEEE publisher, (DOI:10.1109/TEVC.2014.2319051; Q1, Impact factor: 4.8).

3.     Anmar Abuhamdah, Masri Ayob, Graham Kendall and Nasser R. Sabar, (2014). “Population based Local Search for University Course Timetabling Problems" Applied Intelligence, 40(1), pp.44-53. (Q2, impact factor 1.8, publisher: Springer, DOI: 10.1007/s10489-013-0444-6).

4.     Salwani Abdullah, Nasser R. Sabar, Mohd Zakree Ahmad Nazri and Masri Ayob (2014). “An Exponential Monte-Carlo algorithm for feature selection problems”, Computers & Industrial Engineering Journal, 67(1), pp. 160-167 Elsevier (Q2, Impact factor 1.6).

5.     Ghaith Jaradat, Masri Ayob and Zulkifli Ahmad (2014), “On the performance of Scatter Search for Post-Enrolment Course Timetabling Problems”, Journal of Combinatorial Optimization, 27(3), pp.417-439. (Q3 journal; impact factor 0.664, Publisher: Springer, DOI: 10.1007/s10878-012-9521-8, ISSN: 1382-6905).

6.     6.   Nasser R. Sabar, Masri Ayob, Graham Kendall and Rong Qu (2013). “Grammatical Evolution Hyper-heuristic for Combinatorial Optimization problems”, IEEE Transactions on Evolutionary Computation, 17(6), pp.840-861. (Q1 journal: impact factor 4.58, the top five journals in Operation Research, publisher: IEEE, DOI:10.1109/TEVC.2013.2281527).

7.     Mohamed Abdo Salleh Hadwan, Masri Ayob, Nasser R. Sabar and Rong Qu (2013) “A Harmony Search Algorithm for Nurse Rostering Problems”, Information Sciences, 233, pp.126–140 (Q1 journal: impact factor 2.833, publisher: Elsevier, DOI: 10.1016/j.ins.2012.12.025).

8.     Ghaith Jaradat, Masri Ayob and Zulkifli Ahmad (2013), “On the performance of Scatter Search for Post-Enrolment Course Timetabling Problems”, Journal of Combinatorial Optimization, on-line first, (Q3 journal; impact factor 0.664, Publisher: Springer, DOI: 10.1007/s10878-012-9521-8, ISSN: 1382-6905).

9.     Anmar Abuhamdah, Masri Ayob, Graham Kendall and Nasser R. Sabar, (2013). “Population based Local Search for University Course Timetabling Problems" Applied Intelligence, online first, (Q2, impact factor 1.8, publisher: Springer, DOI: 10.1007/s10489-013-0444-6).

10.  Nasser R. Sabar, Masri Ayob, Rong Qu and Graham Kendall (2012). “A Honey-bee Mating Optimization Algorithm for Educational Timetabling Problems”, European Journal of Operational Research, 216(3), pp. 533-543,(Q1 journal; impact factor 2.158, Publisher: Elsevier).

11.  Nasser R. Sabar, Masri Ayob, Rong Qu and Graham Kendall (2012), “A graph coloring constructive hyper-heuristic for examination timetabling problems”. Applied Intelligence, Springer, Vol. 37, 1–11 (Q2 journal, impact factor 0.849, Publisher: Springer).

12.  Anmar Abuhamdah and Masri Ayob (2010). “Adaptive Randomized Descent Algorithm for Solving Course Timetabling Problems”. In The International Journal of the Physical Sciences (IJPS - 2010), 5(16), pp. 2516-2522, (ISI).

13.  Masri Ayob and Graham Kendall (2009). “The Optimisation Of The Single Surface Mount Device Placement Machine In Printed Circuit Board Assembly: A Survey.” International Journal Of Systems Science, 40(6), pp. 553–569. (Q3 journal, Impact factor:0.948, Publisher: Taylor & Francis).

14.  Masri Ayob and Graham Kendall (2008). “A Survey of Surface Mount Device Placement Machine Optimisation: Machine Classification”. European Journal of Operational Research (EJOR), Elsevier, 186, pp. 893-914. (Q1 journal; impact factor 2.158).

 

(Before 2008)

15.  Masri Ayob and Graham Kendall (2005). "A Triple Objective Function with a Chebychev Dynamic Point Specification Approach to Optimise the SMD Placement Machine". European Journal of Operational Research (EJOR), Elsevier, 164, pp. 609-626 (Q1 journal; impact factor 2.158, 5-year impact factor:2.5).

 

 

SCOPUS JOURNALS

(2008-2013)

1.              Hassan Y.Tarawneh and Masri Ayob (2013). “Adaptive Neighbourhoods Structure Selection Mechanism in Simulated Annealing for Solving University Course Timetabling Problems”. Journal of Applied Sciences, 13(7), pp. 1087-1093.

2.              Hassan Y. Tarawneh, Masri Ayob and Zulkifli Ahmad (2013). A Hybrid Simulated Annealing with Solutions Memory for Curriculum-Based Course Timetabling Problem”. Journal of Applied Sciences (Asian Network for Scientific Information), 13(2), pp. 262-269.

3.                  Esam Taha Yassen, Masri Ayob, Mohd Zakree Ahmad Nazri and Zulkifli Ahmad (2013). Harmony Search Algorithm for Vehicle Routing Problem with Time Windows, Journal of Applied Sciences (Asian Network for Scientific Information), 13(4), pp. 633-638. (DOI:10.3923/jas.2013.633.638).

4.           Masri Ayob, Mohd Zakree Ahmad Nazri, Suhaila Zainuddin and Tri Basuki. 2013. Component Pick-and-Place Scheduling for Surface Mount Device Placement Device Placement Machine, International Journal of Soft Computing, 8(1), 29-41. (DOI: 10.3923/ijscomp.2013.29.41).

5.                  Masri Ayob, Mohammed Hadwan, Mohd. Zakree Ahmad Nazri and Zulkifli Ahmad  (2013) “Enhanced Harmony Search Algorithm for Nurse Rostering Problem”, Journal of Applied Sciences, 13(6), pp.846-853.

6.              Hamzah Ali Alkhazaleh, Masri Ayob,  Zalinda Othman and Zulkifli Ahmad (2013), “Constructive Heuristics for Team Orienteering Problems”, Journal of Applied Sciences, 13(6), pp.876-882.

7.              Rafidah Abdul Aziz, Masri Ayob, Zalinda Othman and Hafiz Mohd Sarim (2013), “Adaptive Guided Variable Neighborhood Search, Journal of Applied Sciences”, 13(6), pp. 883-888.

8.              Masri Ayob, Mohd Zakree Ahmad Nazri and Yang Xiao Fei, (2013). “Local Search Heuristics for the One Dimensional Bin Packing Problems”, Journal of Applied Sciences, 13(6), pp. 919-923.

9.              Mohd Zakree Ahmad Nazri, Masri Ayob and Esam Taha Yassen (2013). “Evolutionary Iterated Local Search for Rough Set Attribute Reduction Problems”, International Journal of Advancements in Computing Technology, 5(10), pp.200-208.

10.           Yang Xiao Fei, Masri Ayob, Mohd Zakree Ahmad Nazri and Zulkifli Ahmad (2013). “A Hierarchical Approach for Assigning Examinations to Timeslots and Rooms: A Case Study”, Journal of Engineering and Applied Sciences. 8(2),pp.69-72.

11.            Ghaith M. Jaradat and Masri Ayob. (2013). Effect of Elite Pool and Euclidean Distance in Big Bang-Big Crunch metaheuristic for Post-Enrolment Course Timetabling Problems, International Journal of Soft Computing, 8(2), pp. 96-107.

12.           Hassan Y. Tarawneh, Masri Ayob and Zulkifli Ahmad (2013). “Simulated Annealing with Dynamic Initial Temperatures for University Course Timetable Problem”, Journal of Engineering and Applied Sciences, 8(2),pp.58-63.

13.               Ghaith M. Jaradat, Masri Ayob and, Zulkifli Ahmad (2013). “Scatter Search metaheuristic for Post-Enrolment Course Timetabling Problems: A Review”, IJACT: International Journal of Advancements in Computing Technology, 5(11), pp.118-125.

14.               Mohd Zakree Ahmad Nazri, M. Daman Huri, Azuraliza Abu Bakar, Salwani Abdullah, Masri Ayob and Tri Basuki Kurniawan (2013). “DNA Sequence Design Using Artificial Immune Systems”, Journal of Engineering and Applied Sciences, 8(2),pp.49-57. 

15.              Masri Ayob and Mohd Zakree Ahmad Nazri (2012). “Improving the throughput of component placement machines by nozzle optimisation”, International Journal of Systems Signal Control and Engineering Application, 5(2), pp. 31-46.

BOOK CHAPTERS & PROCEEDINGS

Book Chapter (4)

(2008-2013)

1.       Zulaiha Ali Othman, Abdul Razak Hamdan, Azuraliza Abu Bakar, Suhaila Zainudin, Hafiz Mohd Sarim, Mohd Zakree Ahmad Nazri, Zalinda Othman, Salwani Abdullah, Masri Ayob and Ahmad Tarmizi Abdul Ghani (2011), MYNDA - An intelligent data mining application generator, Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), 7067 LNCS(PART 2), 217-230.

2.       Ghaith Jaradat and Masri Ayob (2010), An Elitist-Ant System for Solving the Post-Enrolment Course Timetabling Problem, In Database Theory and Application, Bio-Science and Bio-Technology, Communications in Computer and Information Science, LNCS 2010, Volume 118, 167-176.

3.       Nasser R. Sabar, Masri Ayob, Graham Kendall and Rong Qu. (2009). Roulette wheel graph colouring for solving examination timetabling problems. In the proceedings of the 3rd Annual International Conference on Combinatorial Optimization and Applications (COCOA'09), June 10-12, 2009, Yellow Mountains, China. Lecture Notes in Computer Science. LNCS 5573, pp. 463–470, 2009. Springer-Verlag Berlin, Heidelberg 2009.

(Before 2008)

4.       Masri Ayob, Ariff Md Ab Malik, Salwani Abdullah, Abdul Razak Hamdan, Graham Kendall, and Rong Qu (2007). “Solving a Practical Examination Timetabling Problem:A Case Study”. In O. Gervasi and M. Gavrilova (Eds.): ICCSA 2007, Lecture Notes In Computer Science (LNCS) 4707, Part III, Springer-Verlag Berlin Heidelberg, pp. 611–624.

International Proceeding (47)

(2008-2013)

5.       Nasser R. Sabar, Masri Ayob and Graham Kendall (2013), A Hybrid of Differential Evolution and Simulated Annealing Algorithms for the Capacitated Arc Routing Problems, Proc. of the 6th Multidisciplinary International Conference on Scheduling: Theory and Applications, MISTA2013, Gent, Belgium.

6.       Rafidah Abdul Aziz, Masri Ayob, Zalinda Othman (2012), The Effect of Learning Mechanism in Variables Neighborhood Search, The 2012 4th Conference on Data Mining and Optimization (DMO12), Langkawi, Malaysia 2-4 Sept.  2012, pp. 109-113.

7.       Esam Taha Yassen, Masri Ayob, Mohd Zakree Ahmad Nazri and Nasser R. Sabar (2012). Multi-Parent Insertion Crossover for Vehicle Routing Problem with Time Windows. The 2012 4th Conference on Data Mining and Optimization (DMO12), Langkawi, Malaysia 2-4 Sept.  2012, pp. 103-108.

8.       Hasan Tarawneh and Masri Ayob (2011), Using Tabu search with multi-neighborhood structures to solve University Course Timetable UKM case study (faculty of engineering), 3rd Conference on Data Mining and Optimization (DMO2011), pp. 208 – 212.

9.       Mouna Jamom, Masri Ayob, Mohamed Hadwan (2011), A greedy constructive approach for Nurse Rostering Problem, 3rd Conference on Data Mining and Optimization (DMO2011), pp. 227 – 231.

10.   Masri Ayob, Ghaith M. Jaradat, Abdul Razak Hamdan, Hafiz Mohd Sarim; Mohd Zakree Ahmad Nazri (2011), “Solving the viva presentations timetabling problem: A case study at FTSM-UKM”, International Conference on Electrical Engineering and Informatics (ICEEI 2011), pp. 1-4.

11.   Ebtisam Sharif, Masri Ayob and Mohamed Hadwan (2011), “Hybridization of heuristic approach with variable neighborhood descent search to solve nurse Rostering problem at Universiti Kebangsaan Malaysia Medical Centre (UKMMC)”, 3rd Conference on Data Mining and Optimization (DMO2011), pp. 178-183.

12.   Mohamed Abdo Salleh Hadwan and Masri Ayob (2011), A semi-cyclic shift patterns approach for nurse rostering problems, 3rd Conference on Data Mining and Optimization (DMO2011), pp. 184 – 189.

13.   Reema A. Abobaker, Masri Ayob and Mohamed Hadwan (2011), “Greedy constructive heuristic and local search algorithm for solving Nurse Rostering Problems”, 3rd Conference on Data Mining and Optimization (DMO2011), pp.194 – 198 http://ieeexplore.ieee.org

14.   Anmar Abuhamdah and Masri Ayob (2011), “MPCA-ARDA for solving course timetabling problems”, 3rd Conference on Data Mining and Optimization (DMO2011), pp. 171 – 177.

15.   Ariff Md Ab Malik, Abdul Kadir Othman, Masri Ayob and Abdul Razak Hamdan (2011), “Hybrid integrated two-stage multi-neighbourhood tabu search-EMCQ technique for examination timetabling problem”, 3rd Conference on Data Mining and Optimization (DMO2011), pp. 17 – 21.

16.   Ghaith Jaradat and Masri Ayob (2011), “Scatter search for solving the course timetabling problem , 3rd Conference on Data Mining and Optimization (DMO2011), pp. 213 – 218.

17.   Masri Ayob, Abdul Razak Hamdan, Salwani Abdullah, Zalinda Othman, Mohd Zakree Ahmad Nazri, Kiftiah Abd Razak, Rohana Tan, Norashikin Baharom, Hilmiah Abd Ghafar, Rashidah Md Dali and Nasser R Sabar (2011). “Intelligent Examination Timetabling Software” Procedia Social and Behavioral Sciences, Vol. 18, pp. 600-608 (impact factor 0.4, Publisher: Elsevier).

18.   Mohamed Abdo Salleh Hadwan and Masri Ayob (2010), "A Constructive Shift Patterns Approach with Simulated Annealing for Nurse Rostering Problem", in 4th international Symposium on Information Technology (ITSim2010). Vol. 1 Kuala Lumpur Convention Center, Kuala Lumpur, Malaysia: IEEE, 2010, pp. 215-220.

19.   Anmar Abuhamdah and Masri Ayob (2010). “Average Late Acceptance Randomized Descent Algorithm for Solving CourseTimetabling Problems”, Proceeding in 2010 4th International Symposium on Information Technology (ITSim2010), Volume 2, 15-17 Jun 2010, Selangor, Malaysia, IEEE, pp. 748-753, 2010.

20.   Ghaith Jaradat and Masri Ayob (2010), “Big Bang-Big Crunch Optimization Algorithm to Solve the Course Timetabling Problem”. Proc. Of 10th International Conference on Intelligent Systems Design and Applications, IEEE, ISDA 2010, pp.1448-1452. ISBN: 9781424481347.

21.   Anmar Abuhamdah and Masri Ayob. “Adaptive Randomized Descent Algorithm Using Round Robin for Solving Course Timetabling Problems”. Proc. Of 10th International Conference on Intelligent Systems Design and Applications, IEEE, ISDA 2010, pp.1201-1206. ISBN: 9781424481347

22.   Ariff Md Ab Malik, Masri Ayob and Abdul Razak Hamdan (2010). “Stratified Random Sampling Technique for Integrated Two-Stage Multi-Neighbourhood Tabu Search for Examination Timetabling Problem”. Proc. Of 10th International Conference on Intelligent Systems Design and Applications, IEEE, ISDA 2010, pp.1326-1331. ISBN: 9781424481347.

23.   Nasser R. Sabar, Masri Ayob and Graham Kendall (2009). “Solving Examination Timetabling Problem using Honey-bee Mating Optimization”. In proceeding of 4th Multidisciplinary International Scheduling: Theory and Applications  (MISTA 2009), 10-12 August 2009, pp. 399-408, Dublin, Ireland

24.   Nasser R. Sabar, Masri Ayob and Graham Kendall (2009).”Tabu Exponential Monte-Carlo with Counter Heuristic for Examination Timetabling”. Proc of the 2009 IEEE Symposium on Computational Intelligence in Scheduling (CI-Sched 2009), Nashville, TN, USA, pp. 90-94.

25.   Nasser R. Sabar and Masri Ayob (2009). “Examination timetabling using Scatter search hyper-heuristics”. In Proceeding of the second conference on Data Mining and Optimization (DMO’09). 27-28 Oct, pp. 127-131, Universiti Kebangsann Malaysia.

26.   Anmar Abuhamdah and Masri Ayob (2009), “Multi-Neighbourhood Particle Collision Algorithm for solving course timetabling problems”, 2nd Conference on Data Mining and Optimization (DMO '09), 27-28 Oct. 2009 pp.21-27.

27.   Mohammed Hadwan and Masri Ayob (2009). “An exploration study of nurse rostering practice at Hospital Universiti Kebangsaan Malaysia”, 2nd Conference Data Mining and Optimization, 2009. DMO '09, 27-28 Oct. 2009 pp.100 – 107.

28.   Anmar Abuhamdah and Masri Ayob (2009), “Hybridization Multi-NeighbourhoodParticle Collision Algorithm and Great Deluge for solving course timetabling problems”. 2nd Conference on Data Mining and Optimization, 2009. DMO '09, Residence Hotel, Selangor, Malaysia, 27-28 Oct. 2009, pp. 108 – 114.

29.   Ghaith Jaradat and Masri Ayob (2009). “Hybrid Ant Colony systems for course timetabling problems”, 2nd Conference on Data Mining and Optimization, 2009. DMO '09.  Residence Hotel, Selangor, Malaysia, 27-28 Oct. 2009, pp. 120 – 126.

30.   Md Ariff Abd Malik, Masri Ayob and Abdul Razak Hamdan (2009). “Iterated two-stage multi-neighbourhood tabu search approach for examination timetabling problem”. 2nd Conference on Data Mining and Optimization, 2009. DMO '09.  Residence Hotel, Selangor, Malaysia, 27-28 Oct. 2009, pp. 141-148.

31.   Ahmed Oughalime, Wan Rosmanira Ismail, Liong Choong-Yeun and Masri Ayob (2009). “Vehicle and driver scheduling modelling: A case study in UKM”. 2nd Conference on Data Mining and Optimization, 2009. DMO '09.  Residence Hotel, Selangor, Malaysia, 27-28 Oct. 2009, pp. 53 – 59.

32.   Nasser R. Sabar and Masri Ayob (2008). Solving Examination Timetabling Problems using Exponential Monte-Carlo with Counter Heuristics. In: Proceeding of the 2008 first conference on Data Mining and Optimization (DMO’08). 3-4 Dec, pp.16-20. Universiti Kebangsann Malaysia.

33.   Mukti Kamal and Masri Ayob (2008).” A New Model for Examination Room Assignment Problem: Case Study at University Kebangsaan Malaysia”. Proc. Of the International Symposium on Information Technology (ITSim2008), Kuala Lumpur, Malaysia, pp.1193-1198.

34.   Ruzzakiah Jenal, Wan Rosmanira, Liong Choong Yeun And Masri Binti Ayob (2008), “Modelling Nurse Rostering Using A 0-1 Goal Programming: A Case Study In HUKM” The 3th International Conference On Mathematics And Statistics (Icoms-3), Institut Pertanian Bogor, Indonesia.Pp:1-23.

(Before 2008)

35.   Masri Ayob (2007). “An On-line Constructive Heuristic to Optimise the Hybrid Pick and Place Machine”. Proc. Of the International Conference on Electrical Engineering and Informatics (ICEEI2007), Bandung, Indonesia, pp. 589-592.

36.   Mohd Nizam Mohmad Kahar and Masri Ayob (2007). “Resource Estimation for Optimized Allocation of Course Timetabling”. Proc. Of the International Conference on Electrical Engineering and Informatics (ICEEI2007), Bandung, Indonesia, pp. 578-581.

37.   Ariff Md Ab Malik, Masri Ayob, and Abdul Razak Hamdan (2007). “A Heuristic for Scheduling Examination to Room Based on Exam Length Duration”. Proc. Of the International Conference on Electrical Engineering and Informatics (ICEEI2007), Bandung, Indonesia, pp. 586-588.

38.   Ruzzakiah Jenal, Wan Rosmanira Ismail, Liong Choong Yuen, Masri Ayob, Mohd Kairi Muda (2007). “Aplikasi Pengaturcaraan Gol 0-1 dalam Penjadualan Jururawat”. Proc. Of the International Conference on Mathematical Sciences 2007 (ICMS07), UKM Bangi, Selangor, Malaysia, pp. 511-521.

39.   Masri Ayob, Edmund Burke and Graham Kendall (2006). “An Iterative Re-start Variable Neighbourhood Search for the Examination Timetabling Problem”. Proc. of the 6th International Conference on the Practice and Theory of Automated Timetabling (PATAT), Brno, Czech Republic, pp. 336-344.

40.   Masri Ayob and Graham Kendall (2004). “A Nozzle Selection Heuristic to Optimise the Hybrid Pick and Place Machine”. Proc. of the 2004 IEEE Conference on Cybernetics and Intelligent Systems, CIS2004, Singapore, pp 1259-1264.

41.   Masri Ayob and Graham Kendall (2003). "A Monte Carlo Hyper-Heuristic To Optimise Component Placement Sequencing For Multi Head Placement Machine". Proc. of the International Conference on Intelligent Technologies, InTech'03, Chiang Mai, Thailand, pp 132-141.

42.   Masri Ayob and Graham Kendall (2003).  "An Investigation of an Adaptive Scheduling for Multi Headed Placement Machines Using a Greedy Search". Proc. of the 1st Multidisciplinary International Conference on Scheduling: Theory and Applications, MISTA 2003, Nottingham, UK, pp 363-380.

43.   Masri Ayob and Graham Kendall (2003). "Real-time Scheduling for Multi Headed Placement Machine". Proc. of the 2003 IEEE International Symposium on Assembly and Task Planning (ISATP2003), Besançom, France, pp 128-133.

44.   Masri Ayob and Graham Kendall (2002). "A new dynamic point specification approach to optimise surface mount placement machine in printed circuit board assembly", Proc. of the IEEE ICIT’02, Bangkok, pp 486-491.

45.   Masri Ayob, Peter Cowling and Graham Kendall (2002). "Optimisation for Surface Mount Placement Machines", Proc. of the IEEE ICIT’02, Bangkok, 498-503.

46.   Masri Ayob, Juhana Salim, Zarina Shukur and Mohd. Shahizam Othman (2001). “Automatic Cataloguing and Classification System”, in Proc. of The International Symposium on Information System and Engineering (ISE’2001), Las Vegas, USA, pp 385-391.

47.   Mohammad Faidzul Nasrudin, Masri Ayob, Khairuddin Omar and Miswan Surip (2001). “KLSE Stock Price Prediction Using Neural Networks With Sector Indices Consideration” in PROC. OF SCOReD 2001, paper No. 121.

48.   Masri Ayob, Mohd. Faidzul Nasrudin, Khairuddin Omar and Miswan Surip (2001). “The Effect of Return Function on Individual Stock Price (KLSE) Prediction Model Using Neural Networks.” in Proc. of The International Conference on Artificial Intelligence, IC-AI’2001, Las Vegas, USA, pp 409-415.

49.   Masri Ayob, Kalaivani Chellapan and Nazlena Mohamad Ali (2001). “Intelligent Tutoring Tool For Digital Logic Design Course (ITDiL)”. in Proc. of International Conference on Electrical and Electronic Technology (IEEE TENCON 2001), Cruise Ship Superstar Virgo (Singapore).

50.   Masri Ayob, Kalaivani Chelappan, Abdullah Mohd Zin and Rosilah Hassan (2000). “Sigma Solution Digital Designer and Simulator,” in Proc. Of the 2nd International Conference On Advances And Strategic Technologies (ICAST2000), pp 1709-1714.

51.   Abdullah Mohd Zin , Masri Ayob, Kalaivani Chelappan, Suhaila Zainuddin and Rosilah Hassan (2000). “A Computer Aided Learning Software for Digital Logic Design” in Proc. Of International Forum Cum Conference On Information Technology And Communication At The Dawn Of The New Millennium, Bangkok, Thailand, pp 629-637,