M.SEENIVASAN, and J.SHINY EPCIYA. “M/M/1/Retrial/Queueing/Model/With/Server/Breakdown/and/Feedback”. Journal of Computational Analysis and Applications (JoCAAA) 31, no. 2 (April 7, 2023): 224–235. Accessed August 22, 2026. https://eudoxuspress.com/index.php/pub/article/view/76.