JOURNAL SYSTEM. 0 - Prelim. Africa Development, [S. l.], v. 34, n. 3-4, 2009. DOI: 10.4314/ad.v34i3-4.1225. Disponível em: https://www.journals.codesria.org/index.php/ad/article/view/1225. Acesso em: 5 aug. 2025.