Raharjo, T., S. Musyarofah, and A. Maghfiroh. “Relationship Between Income and Length of Work Factors With the Incidence of Work Stress on the Bus Drivers in Pandemic Covid-19”. Proceedings of the International Conference on Nursing and Health Sciences, Vol. 2, no. 1, May 2021, pp. 41-46, https://jurnal.globalhealthsciencegroup.com/index.php/PICNHS/article/view/435.