Koummalasy. และ Douangtavanh. (2010) Comparative of Lao consumer's perception toward Thai and Chinese motorcycle /. University of the Thai Chamber of Commerce:ม.ป.ท.Koummalasy. และ Douangtavanh. 2010. Comparative of Lao consumer's perception toward Thai and Chinese motorcycle /. ม.ป.ท.:University of the Thai Chamber of Commerce;Koummalasy. และ Douangtavanh. Comparative of Lao consumer's perception toward Thai and Chinese motorcycle /. ม.ป.ท.:University of the Thai Chamber of Commerce, 2010. Print.