Karina, Putri, and Ahmad Hamim Thohari. “Perancangan Alat Pengukur Detak Jantung Menggunakan Pulse Sensor Berbasis Raspberry”. Journal of Applied Informatics and Computing 2, no. 2 (December 5, 2018): 57–61. Accessed March 6, 2025. https://jurnal.polibatam.ac.id/index.php/JAIC/article/view/920.