Kumar, A., S. Sharma, and S. Sinha. “Evaluation Of Prevalence Of Occupational Low Back Ache Among The Patient Attending The Tertiary Care Hospital”. International Journal of Health and Clinical Research, vol. 4, no. 5, Mar. 2021, pp. 100-1, https://ijhcr.com/index.php/ijhcr/article/view/1082.