Hasan, M. F., M. A. Mandal, M. A. Rahman, M. Moniruzzaman, M. J. Islam, K. Mahmood, and M. Kamruzzaman. “Effect of Ultrasound Therapy on Patients With Osteoarthritis of The Knee Joint”. KYAMC Journal, vol. 7, no. 2, Aug. 2017, pp. 750-7, doi:10.3329/kyamcj.v7i2.33828.