Jamaludin Sipayung, Abdi Sugiarto, Cut Nuraini. Optimizing Community Roles in Environmentally Friendly Wastewater Management in Central Tapanuli. IJMECIE [Internet]. 2025 Sep. 23 [cited 2026 Jul. 19];2(4):83-94. Available from: https://international.aritekin.or.id/index.php/IJMECIE/article/view/344