Azeez Safawi, A., عبد, Al - Shanouna, R., ریم, Al-Sardar, N. and نور 2018. Assessment of water quality characteristics and calculation of coefficient (WQI) for some water sources in Abu-Maria village Tal-Afar district / Nineveh province. Journal of Education and Science (JES). 27, 3 (Jun. 2018), 81–98. DOI:https://doi.org/10.33899/edusj.2018.159320.