Achmad, G. N., and F. Fitriansyah. “Effect of Transformational and Transactional Leadership Styles on Employee Performance and Its Impact on Quality of Work Life in Oil Processing Companies in Balikpapan”. Primanomics : Jurnal Ekonomi & Bisnis, vol. 19, no. 1, Jan. 2021, pp. 77-86, doi:10.31253/pe.v19i1.506.