Hadi Kurniawanto. “THE INFLUENCE OF TRANSFORMATIONAL LEADERSHIP STYLES AND MOTIVATION TOWARDS EMPLOYEE PERFORMANCE ON PT. BERLIAN PUTIH NUSANTARA”. Jurnal Ekonomi, vol. 11, no. 01, June 2022, pp. 334-9, https://www.ejournal.seaninstitute.or.id/index.php/Ekonomi/article/view/251.