Abbasianjahromi, Hamidreza, and Hossein Rajaie. “Developing a Project Portfolio Selection Model for Contractor Firms Considering the Risk Factor”. Journal of Civil Engineering and Management 18, no. 6 (November 20, 2012): 879-889. Accessed December 28, 2024. https://ijspm.vgtu.lt/index.php/JCEM/article/view/4549.