1. Master’s Student, Construction and Building Dept., Arab Academy for Science, Technology and Maritime Transport (AASTMT), Elhorria El Moshir Ismail st.-behind Sheraton Bldg., Cairo 11799, Egypt; Contract & Claim Section Head, RME, Sodic East compound Building 08, 5th Settlement, Cairo 11835, Egypt (corresponding author).
2. Professor, Head of Construction and Building Dept., Engineering College, Arab Academy for Science, Technology and Maritime Transport (AASTMT), Elhorria El Moshir Ismail st.-behind Sheraton Bldg., Cairo 11799, Egypt.
3. Instructor for Construction Contracts and Claims, Faculty of Engineering, Cairo Univ., 1 Gamaa St., Giza Governorate, Cairo 12613, Egypt.
4. Assistant Professor, Construction and Building Dept., Arab Academy for Science, Technology and Maritime Transport (AASTMT), Elhorria El Moshir Ismail st.-behind Sheraton Bldg., Cairo 11799, Egypt.