“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, vol. 2, no. 1, pp. 29–45, Mar. 2025, Accessed: Oct. 13, 2026. [Online]. Available: https://journal.jantoscv.com/index.php/jln/article/view/8