Rahman, Khalidur, Noraida Abdul Ghani, and Anton Abdulbasah Kamil. 2023. “M/M/C/K State-Dependent Models for Controlling the Pilgrims and the Design of Hajj Facilities”. Journal of Numerical Optimization and Technology Management 1 (1):22-28. https://shmpublisher.com/index.php/jnotm/article/view/216.