MIGRO, S. Public sector procurement and black economic empowerment in South Africa: Challenges of preferential procurement and decentralisation of the provincial tender board. Journal of Social Development in Africa, [S. l.], v. 25, n. 2, 2011. DOI: 10.4314/jsda.v25i2.65061. Disponível em: https://www.ajol.info/index.php/jsda/article/view/65061. Acesso em: 6 aug. 2026.