1. Department Quantity Surveying and Construction Management, University of Free State, Bloemfontein, South Africa
2. Department of Building, Faculty of Environmental Sciences, Baze University, Abuja, Nigeria
3. Department of Quantity Surveying, Federal University of Technology Akure, Akure, Nigeria
4. Faculty of Engineering and Built Environment, CIDB Centre of Excellence, University of Johannesburg, Johannesburg, South Africa
5. School of Construction Economics and Management, University of the Witwatersrand, Johannesburg, South Africa