“The Effectiveness of Online Services of the JKN Mobile Application on Outpatient Satisfaction at Malahayati Islamic Hospital, Medan”. HEALTH CARE: JURNAL KESEHATAN 14, no. 2 (January 19, 2026): 355–365. Accessed February 2, 2026. https://www.jurnal.payungnegeri.ac.id/index.php/healthcare/article/view/837.