Ali, W., Nafees, M., Turab, S. A., Khan, M. Y., & Rehman, K. (2019). Drinking water quality assessment using water quality index and geostatistical techniques, Mardan District, Khyber Pakhtunkhwa, Pakistan. Journal of Himalayan Earth Sciences, 52(1), 65-85. Retrieved from http://ojs.uop.edu.pk/jhes/article/view/1850