Ahmad, Norazura, Tan Wei Mey, and Teoh Kher Nee. “Analysing Customers’ Waiting Time Using Discrete-Event Simulation: A Case Study in A University Printing Shop”. Journal of Science and Mathematics Letters 7 (July 10, 2019): 34–43. Accessed May 7, 2024. https://ejournal.upsi.edu.my/index.php/JSML/article/view/2523.