BAWU, H.; MARYATI, S.; YUSUF, D. Dampak Penambangan Pasir Terhadap Kualitas Air Sungai Bulango. Jurnal Penelitian Pendidikan Geografi, [S. l.], v. 8, n. 3, p. 133–142, 2023. DOI: 10.36709/jppg.v8i3.84. Disponível em: http://jppg.uho.ac.id/index.php/journal/article/view/84. Acesso em: 10 jan. 2025.