Yandry Maroli and Siti Safaria 2023. The Influence of Transactional and Transformational Leadership Styles on Employee Performance Through Job Satisfaction PT. PNM Pematang Siantar . Formosa Journal of Sustainable Research. 2, 8 (Aug. 2023), 2083–2098. DOI:https://doi.org/10.55927/fjsr.v2i8.5360.