Ha Trang, Nguyen. “The South China Sea Issue in U.S. - Vietnam Relations under President B. Obama”. VNUHCM Journal of Social Sciences and Humanities 3, no. 3 (February 28, 2020): 152-161. Accessed December 22, 2024. https://stdjssh.scienceandtechnology.com.vn/index.php/stdjssh/article/view/525.