JOURNAL SYSTEM. AD, Volume 24, n° 3 & 4, 1999 - Full Issue. Africa Development, [S. l.], v. 24, n. 3-4, 1999. DOI: 10.57054/ad.v24i3-4.1941. Disponível em: https://www.journals.codesria.org/index.php/ad/article/view/1941. Acesso em: 6 aug. 2025.