JOURNAL SYSTEM. AD Volume 13, n° 4, 1988 - Full Issue. Africa Development, [S. l.], v. 13, n. 4, 1988. DOI: 10.57054/ad.v13i4.1985. Disponível em: https://journals.codesria.org/index.php/ad/article/view/1985. Acesso em: 3 jul. 2024.