Kittipong Putthapornmongkol และ Prasert Akkharaprathomphong. (2005) Safety management system for hazardous substance transportation based-on risk analysis. Chulalongkorn University:ม.ป.ท.Kittipong Putthapornmongkol และ Prasert Akkharaprathomphong. 2005. Safety management system for hazardous substance transportation based-on risk analysis. ม.ป.ท.:Chulalongkorn University;Kittipong Putthapornmongkol และ Prasert Akkharaprathomphong. Safety management system for hazardous substance transportation based-on risk analysis. ม.ป.ท.:Chulalongkorn University, 2005. Print.