“Differing Effect of an EMG Biofeedback-­Monitored Exercise Compared to an Un-­monitored One in Vastus Medialis Obliquus and Vastus Lateralis Muscles Amplitude in Knee Osteoarthritis”. 2012. Indonesian Journal of Physical Medicine and Rehabilitation 1 (1): 27-33. https://doi.org/10.36803/ijpmr.v1i1.189.