ROPE, Ranita. Analisis Usaha Tani pada Sistem Pertanian Alami Padi Ladang di Kabupaten Halmahera Utara. Agrikan Jurnal Agribisnis Perikanan, [S. l.], v. 2, n. 1, p. 10–18, 2009. DOI: 10.52046/agrikan.v2i1.1093. Disponível em: https://journal.tyarlyta.com/index.php/agrikan/article/view/1093. Acesso em: 22 may. 2026.