„Pengaruh Kepemimpinan Dan Motivasi Terhadap Kinerja Karyawan Pada Pt. Selago Makmur Plantation Unit Pabrik Sawit Incari Raya Group”, INVEST, vol. 3, nr. 1, pp. 108–118, aug. 2022, Data accesării: iul. 30, 2026. Disponibil la: https://journal.al-matani.com/index.php/invest/article/view/290