SEMBIRING, Surya Abadi; NAINGGOLAN, Mai Fernando; ANDAYANI, Sri Ayu; TARIGAN, Rio stefanus. Pengembangan Agribisnis Kopi Arabika di Kecamatan Purba, Kabupaten Simalungun. BERNAS: Jurnal Pengabdian Kepada Masyarakat, [S. l.], v. 6, n. 3, p. 2540–2544, 2025. DOI: 10.31949/jb.v6i3.15015. Disponível em: https://www.ejournal.unma.ac.id/index.php/bernas/article/view/15015. Acesso em: 20 aug. 2025.