KHAIR, H.; R.SABRINA; RIZKI WULANITA BATUBARA. Effect of Occupational Safety, Health (K3) and Leadership Style on Employee Work Productivity Mediated by Discipline in Operations PTPN IV Balimbingan. Jurnal Mantik, [S. l.], v. 6, n. 2, p. 1421-1427, 2022. DOI: 10.35335/mantik.v6i2.2526. Disponível em: https://iocscience.org/ejournal/index.php/mantik/article/view/2526. Acesso em: 9 may. 2026.