Ummah, Muhimatul, and Retno Adriyani. “Hygiene and Sanitation of Drinking Water Depot and Microbiology Quality of Drinking Water in Ngasem Primary Healthcare Area, Kediri, East Java”. JURNAL KESEHATAN LINGKUNGAN 11, no. 4 (October 31, 2019): 286–292. Accessed February 6, 2025. https://e-journal.unair.ac.id/JKL/article/view/14694.