PURBA, B.; TARIGAN, D. R.; GINTING, R. O. Analisis Kebijakan Sumber Daya Alam Provinsi Sumatera Utara. Economic Reviews Journal, [S. l.], v. 3, n. 3, p. 1071–1078 , 2024. DOI: 10.56709/mrj.v3i3.246. Disponível em: https://www.mes-bogor.com/journal/index.php/mrj/article/view/246. Acesso em: 26 apr. 2026.