2025. Developing Farmers’ Business in Utilizing Coffee Skin Waste In Turekisa Village Through Biochar Production, Implementation, And Marketing for Sustainable Value Added Increase. ABDIMAS: Jurnal Pengabdian Masyarakat. 8, 4 (Oct. 2025), 2486–2496. DOI:https://doi.org/10.35568/abdimas.v8i4.7285.