1. Rajamangala University of Technology Krungthep,Faculty of Engineering,Department of Aircraft Maintenance Engineering,Bangkok,Thailand
2. Rajamangala University of Technology Krungthep,Faculty of Technical Education,Department of Mechanical Technology,Bangkok,Thailand
3. Rajamangala University of Technology Krungthep,Faculty of Engineering,Department of Electrical Engineering,Bangkok,Thailand
4. Rajamangala University of Technology Krungthep,Faculty of Technical Education,Department of Mechanical Engineering,Bangkok,Thailand