List of Articles Open Access Article Abstract Page Full-Text 1 - Discrete Time Analysis of Multi-Server Queueing System with Multiple Working Vacations and Reneging of Customers Vijaya Laxmi Pikkala Wondewosen Kassahun 20.1001.1.22286225.2019.9.1.1.4 Open Access Article Abstract Page Full-Text 2 - Option Pricing on Commodity Prices Using Jump Diffusion Models Tesfahun Berhane Molalign Adam Eshetu Haile 20.1001.1.22286225.2019.9.1.2.5 Open Access Article Abstract Page Full-Text 3 - Mathematical Model for Designing the Cultural Center of Tehran with the Approach of Popularity Among People seyed omid fatemi Behrouz Mansouri 20.1001.1.22286225.2019.9.1.3.6 Open Access Article Abstract Page Full-Text 4 - A Bi-level Formulation for Centralized Resource Allocation DEA Models Mohammad Moghaddas Ghasem Tohidi 20.1001.1.22286225.2019.9.1.3.6 Open Access Article Abstract Page Full-Text 5 - Heat Transfer in Three-Dimensional Flow along a Porous Plate RAKESH DUBE 20.1001.1.22286225.2019.9.1.5.8 Open Access Article Abstract Page Full-Text 6 - Analysis of a Single Server Queue with Working Vacation and Vacation Interruption Shakir Majid P Manoharan 20.1001.1.22286225.2019.9.1.6.9