Putra, Clairine Maretha Martin. “The Physical And Microbiological Quality Of Clean Water In Nanas Sub Village Kediri District Post Natural Phenomena Sinking Wells”. JURNAL KESEHATAN LINGKUNGAN 10, no. 4 (December 4, 2018): 36–367. Accessed August 3, 2024. https://e-journal.unair.ac.id/JKL/article/view/7262.