Thuc Doan Dang Tran และ Montira Rato. (2012) The role of Thai tourism in promoting Thai-Vietnamese relations. Chulalongkorn University:ม.ป.ท.Thuc Doan Dang Tran และ Montira Rato. 2012. The role of Thai tourism in promoting Thai-Vietnamese relations. ม.ป.ท.:Chulalongkorn University;Thuc Doan Dang Tran และ Montira Rato. The role of Thai tourism in promoting Thai-Vietnamese relations. ม.ป.ท.:Chulalongkorn University, 2012. Print.