Efendi, Mukhlis, and Mesra B. “The Role Of Work Discipline In Mediating Teamwork And Work Environment On Employee Performance (Study At The Property Office, PT. Graha Kreasi Medan)”. Lead Journal of Economy and Administration 2, no. 2 (December 20, 2023): 104–113. Accessed June 30, 2026. https://internationalpublisher.id/journal/index.php/Lejea/article/view/153.