Lakhani, A., Zehra, S. and Laraib, Q. (2024) “Slow Sand Filtration: A Cost-Effective and Straightforward Approach to Water Purification”, PAKISTAN JOURNAL OF BIOCHEMISTRY AND MOLECULAR BIOLOGY, 56(4), pp. 180–191. Available at: http://pjbmb.com/index.php/pjbmb/article/view/113 (Accessed: 19July2025).