Banthao, Jarupong, Raphiphan Kaewhlang, and Rujinee Klaenkratoke. 2018. “An Analysis of Queuing System With Simulation Model at a Drug Dispensing: A Case Study of Chok Chai Hospital”. Thai Industrial Engineering Network Journal 4 (1):17-23. https://ph02.tci-thaijo.org/index.php/ienj/article/view/180483.