Karo, J. A. F. K., and M. T. Daulay. “The Influence of Workload, Job Involvement, and Work Environment on Employee Job Satisfaction at the Department of Transportation, Binjai City ”. INVEST : Jurnal Inovasi Bisnis Dan Akuntansi, vol. 6, no. 2, Aug. 2025, pp. 359-68, doi:10.55583/invest.v6i2.1515.