JOURNAL SYSTEM. AD, Volume 21, n° 4, 1996 - Full Issue. Africa Development, [S. l.], v. 21, n. 4, 1996. DOI: 10.57054/ad.v21i4.1949. Disponível em: https://journals.codesria.org/index.php/ad/article/view/1949. Acesso em: 29 jul. 2025.