“Pendugaan Emisi Metana Pada Sistem Pengelolaan Tanaman Padi Di Kabupaten Minahasa (The Estimation of Methane Emission in The Rice Management System in Minahasa Rregency)”. 2012. JURNAL BIOS LOGOS 2 (1). https://doi.org/10.35799/jbl.2.1.2012.378.