Ramangkoon, Sumontha, Chalermpong Saenjum, and Busaban Sirithunyalug. “PREPARATION OF RICE STRAW ACTIVATED CHARCOAL BY 2- STEP H3PO4 ACTIVATION”. International Journal of Pharmacy and Pharmaceutical Sciences 8, no. 4 (April 1, 2016): 218–221. Accessed April 20, 2024. https://journals.innovareacademics.in/index.php/ijpps/article/view/10741.