Shabbir, A., M. Zubair, Q.- ul-A. Javaid, T. Faisal, M. Mushtaq, B. Sikanadar, S. Ahmed, A. Urooj, H. Nadeem, E. M. M. Ullah, T. Naveed, S. Qamar, H. Tariq, S. Ali, J. Ramzan, A. Hamid, S. Saleem, R. Ijaz, A. Maimoona Safdar Kiran, A. Majeed, and S. Maqbool. “Compare the Effectiveness of Core Muscle Strengthening Versus Quadriceps Muscle Strengthening in the Patient With Patellofemoral Pain Syndrome RCT”. British Journal of Multidisciplinary and Advanced Studies, vol. 4, no. 6, Dec. 2023, pp. 52-62, doi:10.37745/bjmas.2022.0379.