SITINJAK, Wahyunita; LUBIS, Zulkarnain; SIBUEA, Mhd Buhari. Analisis Nilai Tambah Dan Strategi Pengembangan Olahan Kopi Arabika Di Kabupaten Simalungun. Jurnal Ekuilnomi, [S. l.], v. 5, n. 2, p. 487 – 494, 2023. DOI: 10.36985/32e86q59. Disponível em: https://jurnal.usi.ac.id/index.php/ekuilnomi/article/view/2318. Acesso em: 14 may. 2026.