JOURNAL SYSTEM. 0 - Prelim. Africa Development, [S. l.], v. 21, n. 2-3, 1996. DOI: 10.57054/ad.v21i2-3.2490. Disponível em: https://journals.codesria.org/index.php/ad/article/view/2490. Acesso em: 21 may. 2024.