Shrivastava, Dr. R. K., and Preeti Gautami Dubey. 2021. “The Study of Equilibrium Strategies of the Observable Markovian Queue With Redundant Server for Balking and Delayed Repair”. International Journal Of Mathematics And Computer Research 9 (4), 2214-24. https://www.ijmcr.everant.org/index.php/ijmcr/article/view/312.