Kasem Somsin และ Saowalak Kosolkittiamporn. (2017) People's Opinion on the Issue of Traffic Muang Nong Khai Municipality In Nong Khai. <i>Journal of MCU Peace Studies</i>, <i>5</i>(sp1), 162-169.Kasem Somsin และ Saowalak Kosolkittiamporn. "People's Opinion on the Issue of Traffic Muang Nong Khai Municipality In Nong Khai". Journal of MCU Peace Studies 5 (2017):162-169.Kasem Somsin และ Saowalak Kosolkittiamporn. People's Opinion on the Issue of Traffic Muang Nong Khai Municipality In Nong Khai. Master of Arts Program in Peace Studies, Mahachulalongkornrajavidyalaya University:ม.ป.ท. 2017.