Mashhadi, Syed Fawad, et al. “Prevalence of Online Fatigue During COVID-19: A Cross-Sectional Study on Academicians of Rawalpindi”. Pakistan Armed Forces Medical Journal, vol. 72, no. SUPPL-4, Dec. 2022, pp. S879-83, doi:10.51253/pafmj.v72iSUPPL-4.9684.