Chaiyod Chansomboon. (2003) The criminal investigation of narcotic drugs in the provincial police of Kanchanaburi. Mahidol University,:ม.ป.ท.Chaiyod Chansomboon. 2003. The criminal investigation of narcotic drugs in the provincial police of Kanchanaburi. ม.ป.ท.:Mahidol University,;Chaiyod Chansomboon. The criminal investigation of narcotic drugs in the provincial police of Kanchanaburi. ม.ป.ท.:Mahidol University, 2003. Print.