Nainggolan, Fikriyah Arfina, 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) 7, no. 2 (April 30, 2025): 311–318. Accessed May 2, 2025. https://ejournal.medistra.ac.id/index.php/JKG/article/view/2679.