A. Al-Mallah, Enas, Kayis M. Al-Bayati, and Abdul-Mutalib H. Al-Marsoumi. 2006. “Hydrogeochemical Aspects Of Tigris And Euphrates Rivers Within Iraq: A Comparative Study”. Rafidain Journal of Science 17 (4):34-49. https://doi.org/10.33899/rjs.2006.43249.