OKAFOR, F.-C. N. The Changing Global Theoretical Perspectives of the State in a Contemporary Analysis. Nnamdi Azikiwe Journal of Political Science, [S. l.], v. 3, n. 1, p. 14–26, 2012. Disponível em: https://najops.org.ng/index.php/najops/article/view/103. Acesso em: 2 aug. 2025.