V. N. Rama Devi, Y. Saritha, K. Chandan,. (2020). M/EK/1 Queueing System with Vacation, Two types of Repair facilities and Server Timeout. International Journal of Advanced Science and Technology, 29(8s), 846 - 855. Retrieved from http://sersc.org/journals/index.php/IJAST/article/view/10832