Sasiphan Nitayaprapha University of the Thai Chamber of Commerce Information and Communication Technology Department 126/1 Vibhavadee-Rangsit road Dindaeng Bangkok Thailand 10400 TH Web site http://science.utcc.ac.th/people/%E0%B8%AA%E0%B8%B2%E0%B8%82%E0%B8%B2%E0%B8%A7%…
