Micheal, Mathavavisakan Nicholas Gnanasekar, and Kandaiyan Indhira. “ A Literature Review on Retrial Queueing System With Bernoulli Vacation”. Yugoslav Journal of Operations Research 34, no. 1 (August 29, 2023): 109–134. Accessed August 25, 2025. https://yujor.erc.fon.bg.ac.rs/index.php/yujor/article/view/771.