M. A. Goran, Siraj, and سراج. “Evaluation Of Ifraz Water Treatment Plants In Erbil City-Iraq”. Journal of Education and Science (JES) 23, no. 4 (December 1, 2010): 58–79. Accessed August 4, 2025. https://rjps.uomosul.edu.iq/index.php/edusj/article/view/18368.