1. Department of Quantity Surveying, Federal University of Technology Akure, Akure 340110, Nigeria
2. CIDB Centre of Excellence, Faculty of Engineering and Built Environment, University of Johannesburg, Johannesburg 2092, South Africa
3. School of Social Sciences, Universiti Sains Malaysia, Gelugor 11800, Malaysia
4. Department of Civil Engineering, College of Engineering in Al-Kharj, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
5. Department of Civil Engineering, Canadian International College, Zayed Campus, Giza 12577, Egypt
6. Construction and Project Management Research Institute, Housing and Building National Research Centre, Giza 12311, Egypt
7. School of Engineering and the Built Environment, Birmingham City University, Birmingham B4 7XG, UK