Rahmi, D., Kristianto, J. ., & Karma, A. . (2022). Comparison of Energy Cost in Transfemoral Prosthesis Users using Mechanical Four-bar Linkage and Pneumatic System Prosthetic Knee Joints. Journal of Prosthetics Orthotics and Science Technology, 1(1), 28–33. https://doi.org/10.36082/jpost.v1i1.647