Mahendra Varma Polakonda, V.N.Rama Devi, Rajyalakshmi Kottapalli. “(M/EK/C:C/FCFS) Queue With Two-Class Arrivals, State Dependent Service, Multi-Servers, and Customers Impatience”. Journal of Advanced Zoology 44, no. S3 (October 17, 2023): 1108–1116. Accessed July 22, 2024. https://jazindia.com/index.php/jaz/article/view/1106.