Seenivasan, M., and K. S.Subasri. “Batch Arrival Queueing Model With Unreliable Server”. International Journal of Engineering and Technology 7, no. 4.10 (October 2, 2018): 269–273. Accessed February 15, 2026. https://www.sciencepubco.com/index.php/IJET/article/view/20910.