Jetsada Kumphong, Thaned Satiennam, Wichuda Satiennam, Phongsavanh Inthavongsa, and Surat Pramualsakdikul, “MOTORCYCLE HELMET USE AND THE THEORY OF TRAFFIC PSYCHOLOGY FOR BEHAVIOR CHANGE IN LAO PDR”, INTERNATIONAL JOURNAL OF GEOMATE, vol. 16, no. 56, pp. 203–208, Apr. 2019.