Situmorang IR. The Effect of Training Implementation And Work Discipline Level In Improving Employee Performance At PT. Jasa Raharja (Persero) Medan Branch Office. JMBEP [Internet]. 2022 Mar. 3 [cited 2026 Aug. 6];8(1):15-29. Available from: https://www.jurnal.eka-prasetya.ac.id/index.php/MBEP/article/view/225