Dearny, E. and Sonia Chrystabella Hetharie 2021. The Influence of Competence, Training and Work Discipline on Employee Performance of PT. Pos Indonesia (Persero), Binjai Branch Essay 2021. Jurnal Mantik. 5, 1 (Feb. 2021), 16-25. DOI:https://doi.org/10.35335/mantik.Vol5.2021.1252.pp16-25.