1. Senior Lecturer, Universiti Malaysia Pahang, 26300 Kuantan, Pahang, Malaysia (corresponding author).
2. Professor, Faculty of Civil Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia.
3. Associate Professor, Faculty of Civil Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia.