Purba DG, Azhmy MF, Tamba M. PENGARUH GAYA KEPEMIMPINAN, MOTIVASI, REWARD DAN PUNISHMENT TERHADAP KINERJA KARYAWAN PT. PERKEBUNAN NUSANTARA II KEBUN HELVETIA. JaManKu [Internet]. 2023 Nov. 17 [cited 2025 Aug. 30];4(2):36-47. Available from: https://jurnal.harapan.ac.id/index.php/JaManKu/article/view/820