The Four Ages of American Foreign Policy: Weak Power, Great Power, Super Power, Hyper Powe. Journal of Contemporary Studies, [S. l.], v. 11, n. 1, p. 152–154, 2022. DOI: 10.54690/jcs.v11i1.225. Disponível em: https://jcs.ndu.edu.pk/index.php/site/article/view/225. Acesso em: 9 jul. 2026.