1. Taylor's University,School of Engineering, Faculty of Innovation and Technology,Selangor,Malaysia
2. Universiti Teknologi MARA,School of Mechanical Engineering, College of Engineering,Selangor,Malaysia
3. Politeknik Premier Sultan Salahuddin Abdul Aziz Shah,Department of Mechanical Engineering,Selangor,Malaysia
4. Universiti Teknikal Malaysia Melaka,Faculty of Manufacturing Engineering,Melaka,Malaysia
5. University of HKBP Nommensen,Mechanical Engineering Department,Medan,Indonesia