Nguyen, Chi Cuong, Giang Son Tran, Thi Phuong Nghiem, Jean-Christophe Burie, and Chi Mai Luong. “Real-Time Smile Detection Using Deep Learning”. <i>Journal of Computer Science and Cybernetics</i> 35, no. 2 (June 3, 2019): 135–145. Accessed December 5, 2025. https://vjs.ac.vn/jcc/article/view/13315.