OJELABI RAPHEAL A. Public Private Partnership System Initiation Challenges for the Procurement of Public Infrastructure. Covenant Journal of Research in the Built Environment, [S. l.], v. 13, n. 1, p. 13, 2025. Disponível em: https://journals.covenantuniversity.edu.ng/index.php/cjrbe/article/view/5334. Acesso em: 5 dec. 2025.