1. Faculty of Civil Engineering and Built Environment, Universiti Tun Hussein Onn Malaysia, Malaysia
2. Energy & Environment Engineering Department, Quaid-e-Awam University of Engineering, Science & Technology, Nawabshah, Pakistan
3. Faculty of Engineering Technology, Universiti Tun Hussein Onn Malaysia, Malaysia
4. Faculty of Technical and Vocational Education, Universiti Tun Hussein Onn Malaysia, Malaysia
5. School of Industrial Technologi, Universiti Sains Malaysia, George Town, Malaysia