Aniyeri, Roshli, and C. Ratnam Nadar. “Coalesce of Queuing Theory in Multiphase Queuing System in International Airport in Kerala”. Asian Journal of Applied Sciences 3, no. 5 (October 26, 2015). Accessed May 3, 2024. https://ajouronline.com/index.php/AJAS/article/view/3117.