Ramadhan, Ahmad A, Tariq A Hussian, and Kamal B Nada. “Using Statistical Analysis Approach to Evaluate the Groundwater Quality in Jisser Diyala Area”. Al-Nahrain Journal of Science 20, no. 1 (March 1, 2017): 7-16. Accessed September 19, 2021. https://anjs.edu.iq/index.php/anjs/article/view/35.