List of Articles Working vacation Open Access Article Abstract Page Full-Text 1 - Analysis of a Single Server Queue with Working Vacation and Vacation Interruption Shakir Majid P Manoharan Open Access Article Abstract Page Full-Text 2 - Perishable Inventory Model with Retrial Demands, Negative Customers and Multiple Working Vacations Vijaya Laxmi Pikkala Soujanya M.L. Open Access Article Abstract Page Full-Text 3 - Transient Solution of an M/M/1 Variant Working Vacation Queue with Balking Vijaya Laxmi Pikkala Rajesh Pilla Open Access Article Abstract Page Full-Text 4 - Discrete Time Analysis of Multi-Server Queueing System with Multiple Working Vacations and Reneging of Customers Vijaya Laxmi Pikkala Wondewosen Kassahun Open Access Article Abstract Page Full-Text 5 - Bat Algorithm for Optimal Service Parameters in an Impatient Customer N-Policy Vacation Queue Vijaya Laxmi Pikkala Open Access Article Abstract Page Full-Text 6 - ON (A,C,B) POLICY QUEUE WITH CHANGE OVER TIMES UNDER BERNOULLI SCHEDULE VACATION INTERRUPTION Vijaya Laxmi Pikkala Seleshi Demie