P. Manoharan, S. Subathra. Non Markovian retrial queue, balking, disaster under working breakdown and working vacation. Journal of Computational Analysis and Applications (JoCAAA) [Internet]. 2023 Apr. 6 [cited 2024 Dec. 19];31(2):244-55. Available from: https://eudoxuspress.com/index.php/pub/article/view/78