Dung, Bui Quang, and Uong Dinh Khanh. “CALCULATION OF VIETNAM’S COASTLINE LENGTH (MAINLAND) BASED ON TOPOGRAPHIC MAP SYSTEM AT SCALE 1 50,000”. <i>Vietnam Journal of Marine Science and Technology</i> 16, no. 3 (August 31, 2016): 221–227. Accessed November 5, 2025. https://cip.vast.vn/jmst/article/view/8654.