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