Natural Resources, International Economic Migration and the Challenges of National Security: A Focused Study on West African Sub- Region. Global Journal of Human-Social Science, [S. l.], v. 15, n. H2, p. 19–24, 2015. Disponível em: https://socialscienceresearch.org/index.php/GJHSS/article/view/1474. Acesso em: 2 sep. 2026.