Nisaa Yasmin bt Nor Izuddin, Huda bin A Majid. IoT Monitoring System for Vending Machine. peat [Internet]. 2021 Jun. 17 [cited 2024 Jul. 18];2(1):514-21. Available from: https://penerbit.uthm.edu.my/periodicals/index.php/peat/article/view/691