Safaa S. Aweid Al-Malki, Tawoos M.K.A.AL-Shwany1,*. “USING THE WATER QUALITY INDEX (WQI-NSF) FOR GROUNDWATER ASSESSMENT FOR DRINKING PURPOSES IN NORTH, EAST AND NORTHEAST KIRKUK CITY , IRAQ”. British Journal of Global Ecology and Sustainable Development, vol. 13, Feb. 2023, pp. 53-62, https://journalzone.org/index.php/bjgesd/article/view/234.