Alromema, Waseem, Eman Alduweib, and Zaid Abduh. “Heart Sound Classification Using the Nonlinear Dynamic Feature Approach Along With Conventional Classifiers”. Engineering, Technology & Applied Science Research 13, no. 3 (June 2, 2023): 10808–10813. Accessed May 16, 2025. https://www.etasr.com/index.php/ETASR/article/view/5873.