Cao Phuong Thao, Nguyen Thi Hau, and Nguyen Thanh Toan. “EEG ANALYSIS USING TIME-FREQUENCY SIGNAL PROCESSING TECHNIQUE”. UTEHY Journal of Science and Technology, Vol. 11, Oct. 2016, pp. 68-72, http://tapchi.utehy.edu.vn/index.php/jst/article/view/258.