1. Physics and General Science Program, Faculty of Science and Technology, Nakhon Ratchasima Rajabhat University, Nakhon Ratchasima, Thailand
2. Department of Civil Technology, Faculty of Industrial Technology, Lampang Rajabhat University, Lampang, Thailand
3. Department of Physics, Faculty of Science, Naresuan University, Phitsanulok, Thailand
4. Synchrotron Light Research Institute (Public Organization), Nakhon Ratchasima, Thailand