JOURNAL SYSTEM. AD, Volume 17, n° 3, 1992 - Full Issue. Africa Development, [S. l.], v. 17, n. 3, 1992. DOI: 10.57054/ad.v17i3.3562. Disponível em: https://www.journals.codesria.org/index.php/ad/article/view/3562. Acesso em: 6 aug. 2025.