Upaya Peningkatan Pengetahuan Anak Sekolah Minggu Tentang Virus Corona Di Masa Pandemi COVID-19. jpb [Internet]. 2021 Jan. 28 [cited 2026 Oct. 6];3(01):29-31. Available from: https://ejournal.upbatam.ac.id/index.php/jpkm/article/view/2713