Simanjuntak S, Zai EO, Tampubolon MH. ANALISA KEBUTUHAN AIR BERSIH DI KOTA MEDAN SUMATERA UTARA. JVIEKS [Internet]. 2021Jan.30 [cited 2024Dec.22];2(1):119-28. Available from: https://ejournal.uhn.ac.id/index.php/eksakta/article/view/373