Abdel Rashid, I., El-Mikawi, M. and Baha, H. E.-D. M. (2019) “Factors Affecting the Calculations of Return on Investment (ROI) in Public-Private Partnerships (PPP) projects In Egypt”, ARCHive-SR, 2(4), pp. 332–345. doi: 10.21625/archive.v2i4.381.