Esam Taha Yassen, Masri Ayob, Mohd Zakree Ahmad Nazri and Nasser R. Sabar.  (2015).  A hybrid meta-heuristic algorithm for vehicle routing problem with time windows.  - International Journal on Artificial Intelligence Tools.  1550021-1-23. 

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):417-439. 

Nasser R. Sabar, Masri Ayob, Rong Qu and Graham Kendall.  (2012).  A graph coloring constructive hyper-heuristic for examination timetabling problems.  - Applied Intelligence.  37(2012):1-11. 

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.  - Lecture Notes In Computer Science (LNCS).  4707(3):611?624.