JOURNAL SYSTEM. AD, Volume 16, n° 2, 1991 - Full Issue. Africa Development, [S. l.], v. 16, n. 2, 1991. DOI: 10.57054/ad.v16i2.1976. Disponível em: https://journals.codesria.org/index.php/ad/article/view/1976. Acesso em: 3 dec. 2024.