JOURNAL SYSTEM. 0 - Prelim. Africa Development, [S. l.], v. 11, n. 2-3, 1986. DOI: 10.57054/ad.v11i2-3.3070. Disponível em: https://journals.codesria.org/index.php/ad/article/view/3070. Acesso em: 4 aug. 2025.