“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”. 2025. Jurnal Lingkungan Nusantara (JLN) 1 (2). https://journal.jantoscv.com/index.php/jln/article/view/8.