NASUTION, A. R. .; MARDHIYAH, A. .; RINALDI, M. . Exploration of development inequality models in north Sumatera. International Journal of Applied Finance and Business Studies, [S. l.], v. 13, n. 1, p. 27–33, 2025. DOI: 10.35335/ijafibs.v13i1.343. Disponível em: https://ijafibs.pelnus.ac.id/index.php/ijafibs/article/view/343. Acesso em: 16 apr. 2026.