Regional Expansion Policy in the Northern Sumatra Province of Indonesia: Impact on Regional Inequality. Journal of Business Management and Accounting, [S. l.], v. 9, n. 2, p. 93–103, 2019. DOI: 10.32890/jbma2019.9.2.8725. Disponível em: https://educationmalaysia.co.uk/index.php/jbma/article/view/8725. Acesso em: 29 nov. 2025.