Nguyen, Dung. “Economic Development of Sea-Island Tourism Attached to the Assurance of Defense and Security in the Current Context of Integration”. Science and Technology Development Journal 19, no. 4 (December 31, 2016): 20-27. Accessed July 27, 2024. http://stdj.scienceandtechnology.com.vn/index.php/stdj/article/view/756.