Purba, Tania Nazria, Ahmad Perwira Mulia Tarigan, and Gina Cyntia R. Hasibuan. “Analisis Kelayakan Investasi Pengembangan Sistem Penyediaan Air Minum IKK Patumbak Di Kabupaten Deli Serdang (Studi Kasus)”. Jurnal Syntax Admiration 4, no. 2 (February 28, 2023): 248-263. Accessed November 24, 2024. https://jurnalsyntaxadmiration.com/index.php/jurnal/article/view/548.