“Evaluation of Drinking Water Quality in Rural Areas of Khyber Pakhtunkhwa Pakistan: A Case Study of Upper Dir and Barawal Districts”. International Journal of Current Engineering and Technology 5, no. 1 (February 28, 2015): 389–396. Accessed April 10, 2026. https://ijcet.evegenis.org/index.php/ijcet/article/view/1934.