Sukiman, Martino Elvis Presley, Maxi Tendean, and Sri Sulastriningsih. “ANALISIS KUALITAS AIR SUNGAI POOPOH KECAMATAN TOMBARIRI KABUPATEN MINAHASA”. GEOGRAPHIA : Jurnal Pendidikan dan Penelitian Geografi 2, no. 1 (June 28, 2021): 62-67. Accessed December 22, 2024. https://ejurnal.unima.ac.id/index.php/geographia/article/view/837.