Tewary , Rashmi. “Havan-a Scientific Technique for Climate Purification”. Anusandhaan - Vigyaan Shodh Patrika 7, no. 01 (October 10, 2019): 37-40. Accessed August 4, 2025. https://anushandhan.in/index.php/ANSDHN/article/view/1282.