城市轨道交通PPP项目运营方盈利模式及风险分析. 环球经济与管理杂志, [S. l.], v. 2, n. 1, 2025. DOI: 10.62836/jem.v2n1.0259. Disponível em: https://cn.sgsci.org/finance/article/view/259.. Acesso em: 29 4月. 2025.