Salamatpoor, S.; Ghadiri, M. Presenting the Model of Factors Affecting the Environmental Complexity of Public-Private Partnership Projects in the Urban Rings of West Mazandaran Using a Qualitative-Quantitative Method. J. Civ. Asp. Struct. Eng. 2025, 1 (2), 155-163. https://doi.org/10.48314/jcase.v1i2.40.