1. Abdel-Aziz, Y. I., & Karara, H. M. (1971). Direct linear transformation from comparator coordinates into object space coordinates. American Society of Photogrammetry Symposium on Close-Range Photogrammetry, 1-18.
2. Analytical Method for the Analysis and Simulation of Human Locomotion
3. Comfortable and maximum walking speed of adults aged 20—79 years: reference values and determinants
4. Hemiplegic gait: analysis of temporal variables.;M. E.Brandstater;Archives of Physical Medicine and Rehabilitation,1983
5. Henda, A. I. (2011). Software development for 3D kinematics analysis of human walking (in Indonesian). Undergraduate Thesis. Mechanical Engineering Dept. Institut Teknologi Bandung, Bandung, Indonesia.