P MATAN; R RAVICHANDRAN; C VARUN RAMAN; V GOKULA KRISHNAN. EXAMINATION SECURITY USING QR CODE. International Journal of Advance Research in Engineering, Science & Technology, [S. l.], v. 6, n. 3, p. 24–29, 2019. Disponível em: https://ijarest.org/index.php/ijarest/article/view/1899. Acesso em: 16 dec. 2025.