Carin, Carin, et al. “Pengaruh Punishment Dan Beban Kerja Terhadap Prestasi Kerja Karyawan PT MHE Demag Indonesia Medan: The Effect of Punishment and Workload on Employee Performance of PT. MHE Demag Indonesia Medan ”. Jurnal Sinar Manajemen, vol. 9, no. 3, Nov. 2022, pp. 357-66, doi:10.56338/jsm.v9i3.2682.