Al-Tayyar, Taha, and Abdul mohsin Shihab. “Seasonal Variations in Some Elements of the Quality of the Tigris Waters Between Qaber Abd and Al-Qayara”. Journal of Education and Science 17, no. 1 (January 1, 2005): 29–39. Accessed September 10, 2025. https://edusj.uomosul.edu.iq/index.php/edusj/article/view/41952.