Smart Attendance System Using QR Code with Raspberry Pi. International Journal of AI Electronics and Nexus Energy, [S. l.], v. 2, n. 1, p. 328–332, 2026. DOI: 10.64751/b9s9z895. Disponível em: https://zesterapublications.com/journals/index.php/ijaene/article/view/304. Acesso em: 1 may. 2026.