1. Department of Construction Management, Jomo Kenyatta University of Agriculture and Technology, Nairobi, Kenya
2. Department of Construction Management, School of Architecture & Building Sciences, Jomo Kenyatta University of Agriculture and Technology, Nairobi, Kenya
3. School of Architecture & Built Environment, The Technical University of Kenya, Nairobi, Kenya
4. School of Biosystems & Environmental Engineering, Jomo Kenyatta University of Agriculture and Technology, Nairobi, Kenya