Sujarwadi, Rani, and Yayan Sudaryana. 2021. “The Effect of Transformational Leadership Style on Employee Performance At PT. Ciptamega Infrasana in Bogor”. Kontigensi : Jurnal Ilmiah Manajemen 9 (2), 405-10. https://jurnal.dim-unpas.web.id/index.php/JIMK/article/view/182.