HUTAURUK, F. J.; MATONDANG, R.; PUJANGKORO, S. The Effect of Work Discipline on Employee Productivity. Jurnal Sistem Teknik Industri, [S. l.], v. 24, n. 2, p. 221–227, 2022. DOI: 10.32734/jsti.v24i2.8500. Disponível em: https://idjpcr.usu.ac.id/jsti/article/view/8500. Acesso em: 11 aug. 2025.