Costrada, Aldo Novaznursyah, Azizah Ghina Arifah, Inggi Dwi Putri, I Kadek Agus Sara Sawita, Harmadi Harmadi, and Mitra Djamal. 2022. “Design of Heart Rate, Oxygen Saturation, and Temperature Monitoring System for Covid-19 Patient Based on Internet of Things (IoT)”. JURNAL ILMU FISIKA | UNIVERSITAS ANDALAS 14 (1):54-63. https://doi.org/10.25077/jif.14.1.54-63.2022.