1. Assistant Professor, Department of Civil Engineering, National University of Singapore, Block E1A #07-03, 1 Engineering Drive 2, Singapore 117576
2. Research Scholar, Department of Civil Engineering, National University of Singapore, Block E1A #07-03, 1 Engineering Drive 2, Singapore 117576
3. Technical Director, Polyfelt Asia Sdn Bhd, 14, Jalan Sementa 27/91, Seksyen 27, 40400 Shah Alam, Selangor, Malaysia
4. Engineer, Polyfelt Asia Sdn Bhd, 14, Jalan Sementa 27/91, Seksyen 27, 40400 Shah Alam, Selangor, Malaysia