JOURNAL SYSTEM. Africa Development, Volume 31, n° 2, 2006. Africa Development, [S. l.], v. 31, n. 2, 2021. DOI: 10.57054/ad.v31i2.1251. Disponível em: https://www.journals.codesria.org/index.php/ad/article/view/1251. Acesso em: 6 aug. 2025.