KOEN, Charlton. 9- The Case for Longitudinal Survey Research in Social Science Analysis in South Africa. African Sociological Review, [S. l.], v. 3, n. 1, 1999. DOI: 10.4314/asr.v3i1.23161. Disponível em: https://journals.codesria.org/index.php/asr/article/view/3949. Acesso em: 8 sep. 2024.