AHMED KHAN, R. N. 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. Disponível em: https://jcs.ndu.edu.pk/site/article/view/225. Acesso em: 25 apr. 2024.