Etik, Elive Twi, and Wisnu Panggah Setiyono. “The Importance of Knowledge, Skill, Attitude and Competence to Achieve Professional Performance”. Academia Open 50 (December 26, 2021): 10.21070/acopen.5.2021.2391. Accessed November 21, 2024. https://acopen.umsida.ac.id/index.php/acopen/article/view/2391.