Alam, F M Ashraful, Md Shafiqul Islam, Gopal Chandra Ghosh, and Tania Yeasmin. “Assessing the Drinking Water Quality and Performance of Pond Sand Filters (PSF) in Coastal Area of Bangladesh: A Cross Sectional Study on Dacop Upazila of Khulna”. International Journal of Advanced Geosciences 5, no. 2 (July 16, 2017): 69–74. Accessed May 4, 2024. https://www.sciencepubco.com/index.php/IJAG/article/view/7924.