Dearny E, Sonia Chrystabella Hetharie. The Influence of Competence, Training and Work Discipline on Employee Performance of PT. Pos Indonesia (Persero), Binjai Branch Essay 2021. Mantik [Internet]. 2021Feb.28 [cited 2026Jul.28];5(1):16-25. Available from: https://www.ejournal.iocscience.org/index.php/mantik/article/view/1252