K. Jeganathan, C. Sugapriya and M. Nithya. Study on an Inventory Model with Retrial Customer and Two Heterogeneous Servers Including One with Multiple Vacations. CTMCS-V3 [Internet]. 2021 Jun. 29 [cited 2026 Jun. 4];:61-7. Available from: https://stm.bookpi.org/CTMCS-V3/article/view/2047