Chutaporn Amrapala และ Kasem Choocharukul. (2019) Comparative study of travel behavior between Thai and Japanese informal transport users: A case study of Silor services in the Sukhumvit area. <i>Engineering and Applied Science Research</i>, <i>46</i>(4), 349-359.Chutaporn Amrapala และ Kasem Choocharukul. "Comparative study of travel behavior between Thai and Japanese informal transport users: A case study of Silor services in the Sukhumvit area". Engineering and Applied Science Research 46 (2019):349-359.Chutaporn Amrapala และ Kasem Choocharukul. Comparative study of travel behavior between Thai and Japanese informal transport users: A case study of Silor services in the Sukhumvit area. Faculty of Engineering, Khon Kaen University:ม.ป.ท. 2019.