حافظ عبد الناصر علك, and ابراهيم حنان مازن. 2019. “Achieving Educational Service Quality by Applying International Standard (ISO21001:2018) Case Study University of Technology – Electromechanical Engineering Department – Energy Branch”. Journal of Economics and Administrative Sciences 25 (114): 32-45. https://doi.org/10.33095/jeas.v25i114.1721.