Ario Darmanta Ginting, Abdi Sugiarto, & Cut Nuraini. (2025). DEVELOPMENT OF AN ENVIRONMENTALLY FRIENDLY SANITATION SYSTEM IN TANJUNG PURA DISTRICT, LANGKAT REGENCY. Bulletin of Engineering Science, Technology and Industry, 3(3), 315–326. https://doi.org/10.59733/besti.v3i3.117