V. N. Rama Devi, Y. Saritha, K. Chandan,. M/EK/1 Queueing System with Vacation, Two types of Repair facilities and Server Timeout. IJAST [Internet]. 2020Apr.21 [cited 2024May5];29(8s):846 -855. Available from: http://sersc.org/journals/index.php/IJAST/article/view/10832