Sardiman, Cendana, Burlian Mughnie, and Tri Riana Lestari. “Comparison Analysis of Gait on Transfemoral Patient Using Four-Bar Linkage Friction and Pneumatic Swing Phase Control”. Journal Center of Excellent : Health Assistive Technology 1, no. 1 (March 21, 2023): 41–44. Accessed May 6, 2024. https://ejournal.poltekkesjakarta1.ac.id/index.php/jchat/article/view/1013.