KHASANAH, Nur; PUSPITA, Nikken Prima; HASNANI, Fitriana; FATIMAH, Meryta Febrilian; IKHTIYAR, Zakaria Bani. LEONTIEF MATRIX: BUSINESS MODEL RECOMMENDATION FOR EXPORT COMMODITY OF NORTH SUMATERA. Jurnal Matematika UNAND, [S. l.], v. 15, n. 1, p. 95–107, 2026. DOI: 10.25077/jmua.15.1.95-107.2026. Disponível em: https://jmua.fmipa.unand.ac.id/index.php/jmua/article/view/1257. Acesso em: 6 nov. 2026.