CAHAYA PUTRA, K. D. Public Relations: Roles, Entry Requirements and Professionalism. Jurnal ILMU KOMUNIKASI, [S. l.], v. 6, n. 1, 2013. DOI: 10.24002/jik.v6i1.206. Disponível em: https://ojs.uajy.ac.id/index.php/jik/article/view/206. Acesso em: 5 oct. 2025.