F. A. Nainggolan, 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”, JKG, vol. 7, no. 2, pp. 311–318, Apr. 2025.