LILMUTTAQIIN, Arsala; PUTRI, Annora Pratama; SETIAWAN, Moh. Herris. EKONOMI PERKEBUNAN NUSANTARA TAHUN 1830-1930: AFDELING MALANG SEBAGAI JANTUNG KOPI. Journal of Economics, Education, Business and Managements, [S. l.], v. 1, n. 02, p. 41–50, 2025. Disponível em: https://www.journal.penmudin.com/index.php/JEEBM/article/view/14. Acesso em: 17 apr. 2026.