Ayuningtias, Fanny Sania, Linda Barus, and Suami Indarwati. 2025. “Utilization of Oil Palm Shell Waste (Elaeis Guineensis Jacq) into Activated Charcoal”. Ruwa Jurai: Jurnal Kesehatan Lingkungan 19 (1):34-40. https://doi.org/10.26630/rj.v19i1.4886.