Exchall, Exchall. “KEPEMIMPINAN DAN PRODUKTIVITAS KERJA KARYAWAN (Studi Pada PT Pertamina (Persero) Refinery Unit Produksi VI Balongan Cirebon)”. Exchall: Economic Challenge 4, no. 2 (July 20, 2022): 44-51. Accessed July 9, 2026. https://jurnal.publikasi-untagcirebon.ac.id/index.php/exchall/article/view/606.