Nababan, Farida, and Dora Rinova. “The Influence of Transformational and Transactional Leadership Styles on Employee Performance (Case Study at PT Perkebunan Nusantara 1 Regional 7, Kedaton District, Bandar Lampung City)”. Journal of Environmental Economics and Sustainability 2, no. 2 (January 31, 2025): 12. Accessed April 20, 2025. https://economics.pubmedia.id/index.php/jees/article/view/609.