Eric Gunawan, and Robin. “Analysis of the Effect of Work Competency and Employment on Performance Teaching Teachers in School Maitreyawira Deli Serdang”. Enrichment : Journal of Management 12, no. 4 (October 31, 2022): 3394-3401. Accessed April 23, 2026. https://enrichment.iocspublisher.org/index.php/enrichment/article/view/872.