Võ, Tiên, Quỳnh Nguyễn, Phước Nguyễn, and Tuấn Huỳnh. “Using Wavelet Transform for Features Extraction and Machine Learning Algorithms to Classify the Facial Expression by Eeg Signals”. VNUHCM Journal of Natural Sciences 6, no. 2 (June 30, 2022): 2116-2130. Accessed April 26, 2025. http://stdjns.scienceandtechnology.com.vn/index.php/stdjns/article/view/1157.