Arief, Mochammad, et al. “Pengaruh Motivasi Kerja, Disiplin Kerja Dan Punishment Terhadap Produktivitas Kerja Karyawan PT. Sumber Mas Indah Plywood (Studi Kasus : PT. Sumber Mas Indah Plywood Kab. Gresik) ”. Innovative: Journal Of Social Science Research, vol. 3, no. 6, Dec. 2023, pp. 9519-32, doi:10.31004/innovative.v3i6.7680.