Shusaku Nomura, Masako Hasegawa-Ohira, Kuniaki Yajima, Santoso Handri, and Yoshimi Fukumura. “Evaluating the Attitude of a Student in E-Learning Sessions by Physiological Signals”. International Journal of Computer Information Systems and Industrial Management Applications 4 (April 1, 2012): 8. Accessed February 20, 2025. https://cspub-ijcisim.org/index.php/ijcisim/article/view/174.