JOURNAL SYSTEM. AD, Volume 18, n° 3, 1993 - Full Issue. Africa Development, [S. l.], v. 18, n. 3, 2022. DOI: 10.57054/ad.v18i3.1963. Disponível em: https://journals.codesria.org/index.php/ad/article/view/1963. Acesso em: 12 mar. 2025.