Analysis of Inter-Regional Economic Development Inequality in Indonesia: Williamson Index Approach and Determinant Factors. Journal of Economic Trends and Management, [S. l.], v. 2, n. 1, p. 33–42, 2026. Disponível em: https://pppii.org/index.php/jem/article/view/95. Acesso em: 27 feb. 2026.