PAUL B. VITTA. 4 - Development Research in Eastern and Southern Africa: Some Issues for the 1990s: by Paul B. Vitta. Africa Development, [S. l.], v. 14, n. 2, 1989. DOI: 10.57054/ad.v14i2.2831. Disponível em: https://journals.codesria.org/index.php/ad/article/view/2831. Acesso em: 8 jun. 2025.