S, Kartheshwar. QR Code Based Security System to Prevent Unauthorized Access. International Journal of Students’ Research in Technology & Management, [S. l.], v. 3, n. 4, p. 336–339, 2015. DOI: 10.18510/ijsrtm.2015.347. Disponível em: https://mgesjournals.com/ijsrtm/article/view/ijsrtm.2015.347. Acesso em: 3 may. 2024.