Evaluasi kualitas air fisik-kimia mata air Uluna dalam sistem hidrogeologi CAT Manado. GEOGRAPHIA: Jurnal Penelitian dan Pendidikan Geografi, [S. l.], v. 7, n. 1, p. 124–134, 2026. DOI: 10.53682/d00v0c34. Disponível em: https://ejournalfish.unima.ac.id/index.php/geographia/article/view/38. Acesso em: 18 jul. 2026.