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. J. Adv. Zool. [Internet]. 2023 Oct. 17 [cited 2024 Jun. 2];44(S3):1108-16. Available from: http://jazindia.com/index.php/jaz/article/view/1106