Amaliana AP, Yusrita Y, Nasution I. Pengaruh Motivasi Kerja dan Disiplin Kerja terhadap Kinerja Karyawan di PTPN IV Regional I Unit Group Serdang II Sei Karang Kecamatan Galang Kabupaten Deli Serdang. RIGGS [Internet]. 2026 Jul. 31 [cited 2026 Aug. 25];5(2):23641-8. Available from: https://journal.ilmudata.co.id/index.php/RIGGS/article/view/12761