1. Asst. Prof., Dept. of Build. and Constr., City Univ. of Hong Kong, 83 Tat Chee Ave., Hong Kong.
2. Lect., Dept. of Build. and Real Estate, Hong Kong Polytechnic Univ., Hung Hom, Hong Kong.
3. Quantity Surveyor, Davis, Langdon and Seah, Construction Cost Consultants, Leighton Ctr., Causeway Bay, Hong Kong.