Lumbantoruan, Lastiar. “Effect of Motivation and Discipline Against Employee Productivity Employees at PT. Xyz”. Enrichment : Journal of Management 10, no. 1, Novembe (November 1, 2019): 6-10. Accessed August 11, 2026. https://enrichment.iocspublisher.org/index.php/enrichment/article/view/2.