Nguyen, Nha. “The Vietnam Sovereignty on Truong Sa (Spratly Islands) and Hoang Sa ( Paracel Islands) through Analysis of Related Documents in English”. Journal of Science and Technology Development 17, no. 1 (March 31, 2014): 39-48. Accessed June 14, 2025. https://stdj.scienceandtechnology.com.vn/index.php/stdj/article/view/1246.