Wibawa, A., Tianing, N., Kinandana, G., & Juniantari, N. 2018 May 15. THE COMPARISON OF INTERVENTION OF ULTRASOUND AND MUSCLE ENERGY TECHNIQUE WITH ULTRASOUND AND MCKENZIE EXERCISE INTERVENTION ON INCREASING FUNCTIONAL ABILITY IN NON-SPECIFIC LOW BACK PAIN. Majalah Ilmiah Fisioterapi Indonesia. [Online] 6:2