Lakhani A, Zehra S, Laraib Q. Slow Sand Filtration: A Cost-Effective and Straightforward Approach to Water Purification. PJBMB [Internet]. 2024Jun.16 [cited 2026Jul.24];56(4):180-91. Available from: https://www.pjbmb.com/index.php/pjbmb/article/view/113