Wibawa, Ari, Tianing, Ni, Kinandana, Gede Parta, AND Juniantari, Ni Komang Ayu. "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], Volume 6 Number 2 (15 May 2018)