1. School of Housing, Building and Planning, Universiti Sains Malaysia, Pulau Pinang, Malaysia
2. Bekos Energy Services Nigeria Limited, Ikorodu, Nigeria
3. Bowen Partnership, Quantity Surveying Consultancy Firm, Nigeria
4. Department of Construction Management and Quantity Surveying, University of Johannesburg, Auckland Park, South Africa
5. Department of Urban and Regional Planning, Federal University of Technology, Owerri, Nigeria