Tran, Thuan. “Nguyen Lord Navy Corps With the Protection of the Sovereignty and the Exploitation of Marine Resources in the Bien Dong (East Sea)”. Science and Technology Development Journal 16, no. 3 (September 30, 2013): 62-79. Accessed May 2, 2024. http://stdj.scienceandtechnology.com.vn/index.php/stdj/article/view/1648.