“Analysis of Drinking Water Quality in One of the Spings in Umbul Songo, Kopeng, Semarang District: Analisis Kualitas Air Minum Pada Salah Satu Sumber Mata Air Di Umbul Songo, Kopeng Kabupaten Semarang”. Jurnal Lingkungan Nusantara (JLN) 1, no. 2 (March 7, 2025). Accessed September 16, 2025. https://journal.jantoscv.com/index.php/jln/article/view/8.