ANALISIS KUALITAS AIR SUNGAI POOPOH KECAMATAN TOMBARIRI KABUPATEN MINAHASA. GEOGRAPHIA : Jurnal Pendidikan dan Penelitian Geografi, [S. l.], v. 2, n. 1, p. 62 67, 2021. DOI: 10.53682/gjppg.v2i1.837. Disponível em: https://ejurnal.unima.ac.id/index.php/geographia/article/view/837. Acesso em: 19 dec. 2025.