Iswanto, Jefri. “KOMPETENSI, PROFESIONALISME KERJA DAN KINERJA KARYAWAN”. JIANA ( Jurnal Ilmu Administrasi Negara ) 15, no. 1 (March 23, 2017): 184–191. Accessed August 29, 2025. https://jiana.ejournal.unri.ac.id/index.php/JIANA/article/view/3880.