1. Department Quantity Surveying and Construction Management, University of Free State, Bloemfontein, South Africa
2. School of Engineering and Built Environment, Anglia Ruskin University, Chelmsford, UK
3. Department of Building Technology, Bells University of Technology, Ota, Nigeria
4. Department of Building and Real Estate, Hong Kong Polytechnic University, Hong Kong SAR, China
5. Department of Building, Kaduna State University, Kaduna, Nigeria