JOURNAL SYSTEM. 0 - Prelim. Africa Development, [S. l.], v. 23, n. 2, 1998. DOI: 10.57054/ad.v23i2.2414. Disponível em: https://www.journals.codesria.org/index.php/ad/article/view/2414. Acesso em: 6 aug. 2025.