1. Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, Malaysia
2. School of Mechanical Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal, Malaysia
3. Centre of Advanced Manufacturing and Materials Processing (AMMP), Department of Mechanical Engineering, University of Malaya, Kuala Lumpur, Malaysia
4. Chancellery office, The National University of Malaysia, UKM Bangi, Selangor, Malaysia