Urooj, S., Z. A. Mirani, and S. Naz. “Impact of Seasonal Variations on Bacterial, Yeast and Mold’s Count in Drinking Water Collected from Karachi Pakistan”. PSM Microbiology, Vol. 3, no. 1, Mar. 2018, pp. 37-42, https://journals.psmpublishers.org/index.php/microbiol/article/view/178.