“Microbiological Quality of Drinking Water and Beverages in Karachi, Pakistan: Microbiological Quality of Drinking Water” (2010) Biological Sciences - PJSIR, 53(1), pp. 46–49. Available at: https://www.v2.pjsir.org/index.php/biological-sciences/article/view/419 (Accessed: 10 March 2026).