Hegard Sukmawati, Ni Made. “Assessment of Water Quality Index of Beratan Lake Using NSF WQI Indicator”. WMJ (Warmadewa Medical Journal) 4, no. 2 (November 29, 2019): 39-43. Accessed July 23, 2024. https://www.ejournal.warmadewa.ac.id/index.php/warmadewa_medical_journal/article/view/1317.