Hudhajanto, Rizky, Indra Mulyadi, and Ade Sandi. “Wearable Sensor Device Berbentuk Face Shield Untuk Memonitor Detak Jantung Berbasis IoT”. Journal of Applied Informatics and Computing 6, no. 1 (June 23, 2022): 87-92. Accessed April 19, 2024. https://jurnal.polibatam.ac.id/index.php/JAIC/article/view/4105.