RADHI, A. A. Use QR Code and IoT Mobile Devices to Prevent the Spread of an Epidemic (COVID-19). International Journal of Interactive Mobile Technologies (iJIM), [S. l.], v. 16, n. 12, p. pp. 127–136, 2022. DOI: 10.3991/ijim.v16i12.32125. Disponível em: https://online-journals.org/index.php/i-jim/article/view/32125. Acesso em: 14 aug. 2022.