Sonia, Tata. “PROFESSIONAL ETHICS IS A HOSPITAL WORKING PRINCIPLE: Professional, Excellent Service”. PERSPEKTIF: Sudut Pandang Lintas Pengetahuan 1, no. 1 (July 1, 2022): 1036–1040. Accessed October 7, 2026. https://www.ojs.pseb.or.id/index.php/rd/article/view/457.