“Monitoring Number Of Colifom and Escherichia Coli on Drinking Water Refill As Pollution Bioindicator”. Jurnal Biota 6, no. 1 (May 30, 2020): 30–36. Accessed August 17, 2025. https://jurnal.radenfatah.ac.id/index.php/biota/article/view/5430.