IoT BASED SELF CHECKOUT SYSTEM USING CLOUD DATABASE AND RFIDFOR PAYMENT PROCESS OPTIMIZATION. Machine Intelligence Research, [S. l.], v. 18, n. 1, p. 1184–1191, 2024. Disponível em: https://machineintelligenceresearchs.com/index.php/mir/article/view/97.. Acesso em: 16 jun. 2025.