Preparation of Pellet Biopolymer Polyvinyl Alcohol/Alginate/Gluataraldehyde Impregnated with Banana Peel Activated Carbon (BPAC). Gravitasi [Internet]. 2022 Dec. 31 [cited 2026 Sep. 30];21(2):65-8. Available from: https://bestjournal.untad.ac.id/index.php/GravitasiFisika/article/view/16039