Abdulmutalib Raafat Sarhat, Muhammad Mohsin, Aram Hassan Mohammed. Investigation of Groundwater Quality for Drinking Usage in Kifri District (Iraq) by using NPI and WQI Indices: Investigation of groundwater quality for drinking usage in Kifri District. PPASA [Internet]. 2022 Dec. 25 [cited 2025 Dec. 4];59(4):67-7. Available from: http://ppaspk.org/index.php/PPAS-A/article/view/1021