Prabaswara, Tsaqif, Suhardi Suhardi, Mat Amin, and Agus Sofyan. “The Effect of Training, Competence and Motivation on Employee Productivity With Work Engagement As an Intervening Variable”. Economic: Journal Economic and Business 4, no. 2 (June 8, 2025): 321–334. Accessed July 5, 2025. https://jurnal.larisma.or.id/index.php/EJEB/article/view/1077.