JOURNAL SYSTEM. AD, Volume 33, n° 2, 2008 - Full Issue. Africa Development, [S. l.], v. 33, n. 2, 2021. DOI: 10.4314/ad.v33i2.1236. Disponível em: https://journals.codesria.org/index.php/ad/article/view/1236. Acesso em: 9 jun. 2025.