Nguyen, Nhat, Tam Dao, Trung Le, and Chon Le. “Using Unmanned Aerial Vehicles (UAV) for Mornitoring the Construction Progress of Ho Chi Minh City Urban Railway Project”. Science and Technology Development Journal 18, no. 2 (June 30, 2015): 104-112. Accessed November 23, 2024. http://stdj.scienceandtechnology.com.vn/index.php/stdj/article/view/1064.