R. . Kallayanapattharasit, N. . Puankhamma, and N. . Changchit, “Legal Measures for Chinese Tourists with Personal Vehicles for Cross Border Tourism via The Fourth Friendship Bridge between Thai-Laos (Chiang Khong – Houayxay) (in Thai)”, CJHS, vol. 8, no. 2, pp. 154–179, Dec. 2019.