LUMBANTORUAN, M. .; SIRAIT, A. .; ARITONANG, J. Anxiety Study for the Elderly During the Covid-19 Pandemic: Kajian Kecemasan Lansia Di Masa Pandemi Covid-19. Ahmar Metastasis Health Journal, [S. l.], v. 1, n. 2, p. 43–48, 2021. DOI: 10.53770/amhj.v1i2.48. Disponível em: http://ahmareduc.or.id/journal/index.php/AMHJ/article/view/48. Acesso em: 22 apr. 2026.