MANAMPIRING, A. E. STUDI KADAR SENG PADA SUMUR GALI DI KECAMATAN DIMEMBE, KABUPATEN MINAHASA UTARA. EKOTON, [S. l.], v. 3, n. 2, 2012. Disponível em: https://ejournal.unsrat.ac.id/v3/index.php/EKOTON/article/view/299. Acesso em: 23 nov. 2024.