“BERNOULLI’S VACATION OF M^x⁄(G⁄1) QUEUE WITH TWO-TIER SERVICE BASED VOLATILE SERVER” (2021) Turkish Journal of Computer and Mathematics Education (TURCOMAT), 12(9), pp. 1358–1362. Available at: https://turcomat.org/index.php/turkbilmat/article/view/3497 (Accessed: 27 May 2026).