Tran Nguyen Thanh และ Lae Dilokvidhyarat. (2014) THE STUDY ON THE GROWTH OF VIETNAMESE TOURISM SECTOR: THE CASE OF HA LONG BAY. Chulalongkorn University:ม.ป.ท.Tran Nguyen Thanh และ Lae Dilokvidhyarat. 2014. THE STUDY ON THE GROWTH OF VIETNAMESE TOURISM SECTOR: THE CASE OF HA LONG BAY. ม.ป.ท.:Chulalongkorn University;Tran Nguyen Thanh และ Lae Dilokvidhyarat. THE STUDY ON THE GROWTH OF VIETNAMESE TOURISM SECTOR: THE CASE OF HA LONG BAY. ม.ป.ท.:Chulalongkorn University, 2014. Print.