Bakuli, Kuntal, and Manisha Pal. “Bulk Service Queuing System with Impatient Customers: A Computational Approach”. Thailand Statistician 15, no. 1 (January 6, 2017): 1–10. accessed September 20, 2026. https://ph02.tci-thaijo.org/index.php/thaistat/article/view/74239.