Đặng Trường Sơn, Trần Công Tú, and Phùng Quang Ngọc. “The UTE Online Judge”. Journal of Technical Education Science 7, no. 4 (December 27, 2012): 21–27. Accessed May 9, 2026. https://jte.edu.vn/index.php/jte/article/view/823.