NISAA YASMIN BT NOR IZUDDIN; HUDA BIN A MAJID. IoT Monitoring System for Vending Machine. Progress in Engineering Application and Technology, [S. l.], v. 2, n. 1, p. 514–521, 2021. Disponível em: https://publisher.uthm.edu.my/periodicals/index.php/peat/article/view/691. Acesso em: 8 apr. 2026.