Desu, Jyothsna Desu. “A Review on Various Water Purification Techniques With Neem and Tulsi Extracts”. Helix - The Scientific Explorer | Peer Reviewed Bimonthly International Journal 12, no. 2 (April 30, 2022): 21-27. Accessed September 28, 2025. https://www.helixscientific.pub/index.php/home/article/view/397.