QURESHI, M. Barriers to PPP Projects in Construction Sector of Pakistan. Pakistan Journal of Scientific Research, [S. l.], v. 1, n. 1, p. 6–9, 2021. DOI: 10.57041/vol1iss1pp6-9. Disponível em: http://pjosr.com/index.php/pjosr/article/view/2. Acesso em: 17 apr. 2026.