1. Master’s Student, Faculty of Engineering, Cairo Univ., Giza 12613, Egypt; Senior Contracts Engineer, Orascom Construction, Cairo Univ. St., Giza 12613, Egypt (corresponding author).
2. Professor, Faculty of Engineering, Cairo Univ., Giza 12613, Egypt.
3. Instructor for Construction Contracts and Claims, Faculty of Engineering, Cairo Univ., Giza 12613, Egypt; Owner of DAR for Engineering Contracts, St. 14, Maadi, Cairo Governorate, Cairo 11431, Egypt.