Abdulazeez, Adnan M., و Subhi R. M. Zeebaree. 2018. "Design and Implementation of Electronic Learning System for Duhok Polytechnic University". المجلة الأكاديمية لجامعة نوروز 7 (3):249-58. https://doi.org/10.25007/ajnu.v7n3a250.