Panigrahi, Debasis. “SULPHUR (GANDHAKA) PURIFICATION METHODS W.S.R. TO RASA CLASSICS”. Journal of Biomedical and Pharmaceutical Research 8, no. 6 (December 30, 2019): 92-98. Accessed July 3, 2024. https://jbpr.in/index.php/jbpr/article/view/698.