SAGAR SURI, V. S. , A. G. . , U. J. . ,. Automatic Toll Collection System Using QR Code. International Journal of Engineering and Computer Science, india, v. 6, n. 3, 2017. Disponível em: https://ijecs.in/index.php/ijecs/article/view/3401. Acesso em: 19 may. 2024.