Khamis, N., B. Md Deros, and M. Abdul Khalid. “Applying Subjective Measures to Evaluate Sitting Discomfort: Pertinent Research and Recent Developments”. Journal of the Society of Automotive Engineers Malaysia, vol. 2, no. 2, Apr. 2021, pp. 199-1, doi:10.56381/jsaem.v2i2.87.