Zon Saroha Ritonga. “Analisis Hubungan Komitmen Kerja Terhadap Produktivitas Kerja Staf Universitas Nahdlatul Ulama Sumatera Utara (UNUSU) ”. Multiverse: Open Multidisciplinary Journal 1, no. 1 (April 30, 2022): 45–51. Accessed March 10, 2026. https://jurnal.medanresourcecenter.org/index.php/MULTIVERSE/article/view/625.