Chang , Chu Yun, and Wan Nor Munirah Ariffin. “Comparative Study of Graph Colouring and Simulated Annealing for Examination Timetabling at UTHM Pagoh”. Enhanced Knowledge in Sciences and Technology, vol. 6, no. 1, Aug. 2026, pp. 491-00, https://periodical.uthm.edu.my/index.php/ekst/article/view/22420.