Silalahi H, Johannes J, Ginting K. THE EFFECT OF MOTIVATION AND WORK DISCIPLINE ON PERFORMANCE OF EMPLOYEES AT UPBJJ OFFICE UT MEDAN . SIJEL [Internet]. 2021Nov.8 [cited 2026Aug.8];1(4):934-41. Available from: https://www.sijel-journal.sensei-journal.com/jbo/article/view/56