LUBIS, D. F. .; HERNOKO, A. Y. .; PURBA, H. .; HARIANTO, D. . When public interest meets private profit: The principle of proportionality in Indonesian PPP contracts. International Journal of Innovative Research and Scientific Studies, [S. l.], v. 8, n. 7, p. 185–193, 2025. DOI: 10.53894/ijirss.v8i7.10424. Disponível em: https://www.ijirss.com/index.php/ijirss/article/view/10424. Acesso em: 5 dec. 2025.