Haq T, Urooj M-, Perveen F, Sultana L. Bacteriological Analysis of Groundwater of Karachi. Pakistan Journal of Scientific & Industrial Research [Internet]. 2007 Aug. 9 [cited 2024 May 19];50(4):273-7. Available from: https://v2.pjsir.org/index.php/biological-sciences/article/view/1000