Nosair, Ibrahim Abdel Rashid, Ayman Hussien Hosny, Mohamed Ahmed El-Mikawi, and Hossam El-Din Mohamed Bahaa. 2018. “Modeling System to Support the Determination of the Return on Investment (ROI) for PPP Projects in Egypt”. Resourceedings 1 (2):17-30. https://doi.org/10.21625/resourceedings.v1i2.320.