Analisis Pendapatan Usahatani Kopi Di Kecamatan Permata Kabupaten Bener Meriah. Gajah Putih Journal of Economics Review, [S. l.], v. 3, n. 1, p. 88–97, 2021. DOI: 10.55542/gpjer.v3i1.224. Disponível em: https://jurnal.ugp.ac.id/index.php/gpjer/article/view/224. Acesso em: 7 may. 2026.