Simanjuntak, Salomo, Eben Oktavianus Zai, and Parto Oktavianus Sihombing. “ANALISA KEBUTUHAN AIR BERSIH PADA DI KOTA BINJAI SUMATERA UTARA”. Jurnal Visi Eksakta 1, no. 1 (July 30, 2020): 123-141. Accessed January 12, 2025. https://ejournal.uhn.ac.id/index.php/eksakta/article/view/56.