Kareem yaseen, Kamila, AND 		Khalaf  Hameed, Dali.
" H aydrogeou pho logy of The valley of nations using Geogro phic techniques (Analyticalstady)" <em>Journal of Tikrit university for humanities - مجلة جامعة تكريت للعلوم الانسانية</em> [Online], Volume 25 Number 9 (22 March 2019)