JOURNAL. 7 - THE ECONOMIC AND SOCIAL RESEARCH INSTITUTE. Africa Development, [S. l.], v. 3, n. 3, 1978. DOI: 10.57054/ad.v3i3.3494. Disponível em: https://journals.codesria.org/index.php/ad/article/view/3494. Acesso em: 6 dec. 2024.