IOT BASED SELF CHECKOUT SYSTEM USING CLOUD DATABASE AND RFID FOR PAYMENT PROCESS OPTIMIZATION. Machine Intelligence Research, [S. l.], v. 19, n. 1, p. 376–381, 2025. Disponível em: https://machineintelligenceresearchs.com/index.php/mir/article/view/246.. Acesso em: 29 apr. 2025.