فهرس المقالات Shakir Majid المقاله 1 - Analysis of a Single Server Queue with Working Vacation and Vacation Interruption 20.1001.1.22286225.2019.9.1.6.9 Shakir Majid P Manoharan International Journal of Mathematical Modeling & Computations , العدد 1 , السنة 9 , زمستان 2019