Manampiring AE. STUDI KADAR SENG PADA SUMUR GALI DI KECAMATAN DIMEMBE, KABUPATEN MINAHASA UTARA. EKOTON [Internet]. 2012 May 19 [cited 2024 Jul. 18];3(2). Available from: https://ejournal.unsrat.ac.id/v3/index.php/EKOTON/article/view/299