Afnel, Liza Okta, and Ananda Putra. “RUBBER FRUIT SHELL CARBON APPROXIMATE TESTING ( Hevea Brasilliensis)”. ELECTROLYTE 2, no. 02 (January 30, 2023): 55–64. Accessed October 11, 2025. https://journals.insparagonsociety.org/index.php/electrolyte/article/view/200.