REFERENCES :
Assoc. Prof. Dr. Kitti Auttakitmongkol Dr. Sudarat Khwan-on
Advisor and lecturer Lecturer
School of Electrical Engineering School of Electrical Engineering
Institute of Engineering Institute of Engineering
Suranaree University of Technology Suranaree University of Technology
Nakhon Ratchasima 30000, Thailand Nakhon Ratchasima 30000, Thailand
Ph: 0-4422-4367, 0-4422-4601 Ph: 0-4422-4534 , 0-4422-4601
Email: kitti@sut.ac.th Email: sudarat_kh@sut.ac.th