Br Ginting, Stepany Melani, et al. “The Influence of Transformational Leadership Style and Employee Engagement on Employee Performance at PT. Perkebunan Nusantara IV Regional I Medan”. SAJMR : Southeast Asian Journal of Management and Research, vol. 3, no. 1, Jan. 2025, pp. 12-26, doi:10.61402/sajmr.v3i1.233.