Baby, Saroja K., and V. Suvitha. “ Analysis of Single Server Repairable Queueing System With Many Kinds of Service, Single Working Vacation and Standby Server”. Yugoslav Journal of Operations Research 34, no. 2 (December 2, 2023): 285–306. Accessed August 25, 2025. https://yujor.erc.fon.bg.ac.rs/index.php/yujor/article/view/783.