Ashar, A. A., & Saputra, D. H. R. (2021). Design and Build a Safe Security System Using RFID With e-KTP as a Tag and Monitoring With IoT-Based Esp32-Cam With Telegram Notifications. Indonesian Journal of Innovation Studies, 13, 10.21070/ijins.v13i.527. https://doi.org/10.21070/ijins.v13i.527