KOTRESH, H. M.; RAKSHITHA, S.; SAHANA, R.; RAKSHITA, P. Automated Smart Way Billing System in Shopping Malls using Arduino. International Journal of Research in Engineering, Science and Management, [S. l.], v. 4, n. 7, p. 200–203, 2021. Disponível em: https://journal.ijresm.com/index.php/ijresm/article/view/1032.. Acesso em: 4 may. 2024.