Nguyen , Minh Tâm, Minh Tiến Dao, Đình Đạt Vu, Trọng Nguyễn Ho, Minh Hoàng Nguyen, Văn Đông Hải Nguyen, and Thị Oanh Nguyen. 2016. “Method of Sliding Mode Control for Ball – Beam Systems ”. Journal of Technical Education Science 11 (4):37-42. https://www.jte.edu.vn/index.php/jte/article/view/422.