1. Professor, Dept. of Building and Real Estate, The Hong Kong Polytechnic Univ., Kowloon, Hong Kong.
2. PhD Research Student, Dept. of Building and Construction, City Univ. of Hong Kong, Tat Chee Ave., Kowloon, Hong Kong.
3. Associate Professor, Dept. of Building and Construction, City Univ. of Hong Kong, Tat Chee Ave., Kowloon, Hong Kong.
4. Associate Professor, Dept. of Building and Real Estate, The Hong Kong Polytechnic Univ., Kowloon, Hong Kong.