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), pp. 16-25. doi: 10.35335/mantik.Vol5.2021.1252.pp16-25.