Siregar I. Pengaruh Insentif, Disiplin, Pengawasan, dan Motivasi terhadap Kinerja Karyawan Politeknik Ganesha Medan. Jesya [Internet]. 24Oct.2020 [cited 28Aug.2026];3(2):479-90. Available from: https://www.stiealwashliyahsibolga.ac.id/jurnal/index.php/jesya/article/view/282