1. Associate Professor, Dept. of Building, National Univ. of Singapore, 4 Architecture Dr., Singapore 117566.
2. Professor, Dept. of Civil and Environmental Engineering, 213 McLaughlin Hall, Univ. of California, Berkeley, CA 94720.
3. Cost Engineer, KPK Quantity Surveyors (Singapore) Pte. Ltd., 1 Magazine Rd., No. 03-01, Singapore 059567.