Sitohang, Oloan, Kornel Munthe, Edison Hatoguan Manurung, Pio Ranap Tua Naibaho, and Sitti Wardiningsih. 2023. “Review of Clean Water Supply System Development’s Feasibility in Indonesia’s Samosir Regency”. Inersia : Jurnal Teknik Sipil Dan Arsitektur 19 (1):143-52. https://doi.org/10.21831/inersia.v19i1.54197.