Hikmat Nadhim, Hala, شفاء, Lilian Yaqup Matti, and احمد. 2007. “Quality Variation of Tigris River and Effect on the Performance of Water Treatment Units at Al-Salamia Plant”. Al-Rafidain Engineering Journal (AREJ) 15 (2):26-37. https://doi.org/10.33899/rengj.2007.44964.