1. Assistant Professor, Dept. of Building and Construction, City Univ. of Hong Kong, Tat Chee Ave., Kowloon Tong, Hong Kong (corresponding author).
2. Ph.D. Candidate, Dept. of Building and Construction, City Univ. of Hong Kong, Tat Chee Ave., Kowloon Tong, Hong Kong.
3. Associate Dean, Faculty of Humanities and Social Sciences, City Univ. of Hong Kong, Tat Chee Ave., Kowloon Tong, Hong Kong.