Lakshmi, P. Vara, V. Saritha, K. Swetha Chowdhary, G. Mallika, and B. S. S. S. Harish Kumar. “Biosand Filter for Removal of Chemical Contaminants from Water”. Advances in BioScience 3, no. 2 (April 1, 2012): 103–108. Accessed October 22, 2026. https://sosjournals.org/ab/article/view/70.