Muntaha, S. T., S. Syed, N. Kosar, and M. Shafique. “Frequency of Work Related Musculoskeletal Pain in Upper Extremity Among Security Guards: Musculoskeletal Disorders in Upper Extremity”. Pakistan Journal of Physical Therapy (PJPT), vol. 1, no. 2, Sept. 2020, pp. 7-11, doi:10.52229/pjpt.v1i2.453.