JOURNAL SYSTEM. AD, Volume 11, n° 4, 1986 - Full Issue. Africa Development, [S. l.], v. 11, n. 4, 1986. DOI: 10.57054/ad.v11i4.1995. Disponível em: https://journals.codesria.org/index.php/ad/article/view/1995. Acesso em: 28 jul. 2025.