Windari, Ayu, and John F. Marpaung. “Effect of Rewards on Employee Performance At PT Sejahtera Mandiri Lubuk Pakam”. Journal of Economics and Business (JECOMBI) 2, no. 2 (January 28, 2021): 179–185. Accessed May 10, 2026. https://jecombi.seaninstitute.or.id/index.php/JECOMBI/article/view/25.