et. al., V. Rajam1,. 2021. “BERNOULLI’S VACATION OF M^x⁄(G⁄1) QUEUE WITH TWO-TIER SERVICE BASED VOLATILE SERVER”. Turkish Journal of Computer and Mathematics Education (TURCOMAT) 12 (9):1358-62. https://turcomat.org/index.php/turkbilmat/article/view/3497.