MANURUNG, E.; SIAGIAN, N. Hubungan Pengetahuan dengan Kecemasan Siswa SMA Swasta Advent Pematang Siantar terhadap Pandemi Covid-19. Nursing Inside Community, [S. l.], v. 3, n. 1, p. 8-14, 2021. Disponível em: https://jurnal.stikesnh.ac.id/index.php/nic/article/view/372. Acesso em: 22 dec. 2024.