IFANTI NUR ISLAMIAH, and AGUS AAN ADRIANSYAH. “ANALISIS SISTEM PENCATATAN DAN PELAPORAN PELAKSANAAN CONTACT TRACING COVID-19”. WIDYALOKA 10, no. 1 (January 31, 2023): 88–103. Accessed April 30, 2026. http://jurnal.ikipwidyadarmasurabaya.ac.id/index.php/widyaloka/article/view/125.