Sensitivity analysis of key factors influencing concession period estimation in PPP wastewater treatment projects: a system dynamics approach. Construction Economics and Building, [S. l.], v. 25, n. 3/4, 2025. DOI: 10.5130/AJCEB.v25i3/4.9514. Disponível em: https://epress.lib.uts.edu.au/journals/index.php/AJCEB/article/view/9514. Acesso em: 8 jan. 2026.