Purba, Sopianna Br. “The Effect of Work Conflict on Teacher Performance in Sinar Harapan Education Foundation. Beringin Deli Serdang Regency”. Enrichment : Journal of Management 9, no. 1, Novembe (November 1, 2018): 1-3. Accessed April 17, 2026. https://enrichment.iocspublisher.org/index.php/enrichment/article/view/6.