IWOK, U. M. Africa’s Underdevelopment: An Issue of External Influence. International Journal of Economic Development Research and Investment (IJEDRI), [S. l.], v. 3, n. 3, p. 77–81, 2012. Disponível em: http://icidr.org.ng/index.php/Ijedri/article/view/818. Acesso em: 19 sep. 2024.