Sadaf, R., I. Younes`, M. Shafiq, N. Naseem, and A. Ghaffar. “Spatial Patterns and Trends of Escherichia Coli in Public Water Supply System of Lahore, Pakistan: E. Coli in Public Water of Lahore”. Biological Sciences - PJSIR, vol. 61, no. 3, Dec. 2018, pp. 151-7, doi:10.52763/PJSIR.BIOL.SCI.61.3.2018.151.157.