โสภณ พัฒนะวิริยะศิริกล. (2010) A Protocol for Automatic Electronic Toll Collection System Based On VANET. <i>Journal of Information Science and Technology</i>, <i>1</i>(1), 30-42.โสภณ พัฒนะวิริยะศิริกล. "A Protocol for Automatic Electronic Toll Collection System Based On VANET". Journal of Information Science and Technology 1 (2010):30-42.โสภณ พัฒนะวิริยะศิริกล. A Protocol for Automatic Electronic Toll Collection System Based On VANET. Faculty of Information Science and Technology, Mahanakorn University of Technology:ม.ป.ท. 2010.