Ario Darmanta Ginting, Abdi Sugiarto, Cut Nuraini. DEVELOPMENT OF AN ENVIRONMENTALLY FRIENDLY SANITATION SYSTEM IN TANJUNG PURA DISTRICT, LANGKAT REGENCY. BESTI [Internet]. 2025 Aug. 28 [cited 2026 Jun. 8];3(3):315-26. Available from: https://bestijournal.org/index.php/go/article/view/117