Nainggolan, F. A., Anna Tirawani Ambarita, Agustatius Sitepu, Keleng Ate Ginting, and Layari Tarigan. “Implementation of JKN Mobile Application-Based Health Services in Reducing Queues at the Karang Anyer Health Center Beringin District Deli Serdang Regency”. JURNAL KESMAS DAN GIZI (JKG), vol. 7, no. 2, Apr. 2025, pp. 311-8, doi:10.35451/jkg.v7i2.2679.