S. Munthe and W. A. Ritonga, “The Influence of Work Environment and Self-Reward on Employee Job Satisfaction at PT Sun Berlian Motor Rantauprapat”, J. Ekon. Manaj. Bis., vol. 4, no. 2, pp. 773–781, Jun. 2026, doi: 10.70716/emis.v4i2.602.