SYAFRIADI. The Effect of Supervision, Career Development, and Position Promotion on Employee Performance at PT. Saka Partner Sejati Medan. Jurnal Mantik, [S. l.], v. 5, n. 2, p. 630-639, 2021. DOI: 10.35335/mantik.Vol5.2021.1375.pp630-639. Disponível em: https://iocscience.org/ejournal/index.php/mantik/article/view/1375. Acesso em: 21 aug. 2026.