Le, Khai, Huong Nguyen, Hien Nguyen, Hieu Nguyen, and Linh Huynh. “Improvement Implementation a Software to Analysis Polysomnography Signal”. VNUHCM Journal of Science and Technology Development 18, no. 2 (June 30, 2015): 85-94. Accessed April 27, 2025. http://stdj.scienceandtechnology.com.vn/index.php/stdj/article/view/1076.