Alfandi, Brian, M. Ali Mukmin, Ria Rosyati, and Siti Abadiyah. 2024. “DEVELOPMENT OF EFFICIENT AND ENVIRONMENTALLY FRIENDLY SEPTIC TANKS”. Jurnal Pensil : Pendidikan Teknik Sipil 13 (3):330-41. https://doi.org/10.21009/jpensil.v13i3.44130.