C. Y. Chang and W. N. M. Ariffin, “Comparative Study of Graph Colouring and Simulated Annealing for Examination Timetabling at UTHM Pagoh”, EKST, vol. 6, no. 1, pp. 491–500, Aug. 2026, Accessed: Aug. 14, 2026. [Online]. Available: https://periodical.uthm.edu.my/index.php/ekst/article/view/22420