MAFTUNA, S. Methods of State Regulation of the Spheres of Natural Monopolies. Journal of Geography, Regional Planning and Development, [S. l.], v. 1, n. 1, p. 43–50, 2023. DOI: 10.61796/jgrpd.v1i1.55. Disponível em: https://journal.antispublisher.id/index.php/JGRPD/article/view/55. Acesso em: 19 nov. 2025.