Al ibrahimi, suhaila najem. “The Spatial Relationship Between the Quality and Productivity of Groundwater and Soil in the District of Samarra Using (GIS)”. Journal of Tikrit University for Humanities 25, no. 12 (December 20, 2018): 315–336. Accessed July 16, 2026. https://jtuh.org/index.php/jtuh/article/view/566.