“Preparation of Pellet Biopolymer Polyvinyl Alcohol Alginate Gluataraldehyde Impregnated With Banana Peel Activated Carbon (BPAC)”. Gravitasi 21, no. 2 (December 31, 2022): 65–68. Accessed September 30, 2026. https://bestjournal.untad.ac.id/index.php/GravitasiFisika/article/view/16039.