GINTING, Erika Sari; PRAMONO, Retno Widodo Dwi. Improving Mineral Mining License System in North Sumatera Indonesia. Cakrawala, [S. l.], v. 14, n. 1, p. 51–65, 2020. DOI: 10.32781/cakrawala.v14i1.321. Disponível em: https://cakrawalajournal.org/index.php/cakrawala/article/view/321. Acesso em: 15 jun. 2026.