FERRY, F.; LIVEA, L.; HENDRY, H. The Influence of Leadership, Motivation and Work Discipline on Employee Performance at PT Panjiwira Surya Mandiri Medan. Jurnal Mantik, [S. l.], v. 4, n. 2, p. 1350-1355, 2020. DOI: 10.35335/mantik.Vol4.2020.949.pp1350-1355. Disponível em: https://www.ejournal.iocscience.org/index.php/mantik/article/view/949. Acesso em: 11 jun. 2026.