1. School of Engineering and Physical Sciences, Heriot-Watt University Malaysia, 62200 Putajaya, Malaysia
2. School of Engineering and Technology, Sunway University, 47500 Selangor, Malaysia
3. Faculty of Engineering, Computing and Science, Swinburne University of Technology, 93350 Sarawak, Malaysia
4. Safety and Health Research Group, Universiti Teknologi Malaysia, 81310 Johor Bahru, Malaysia