Indriani, Selvi. “Design Of Asthma Detection Devices Through Heart Rate and Oxygen Saturation ”. Indonesian Journal of Electronics, Electromedical Engineering, and Medical Informatics 2, no. 3 (August 17, 2025): 143–149. Accessed July 30, 2026. https://ijeeemi.org/index.php/ijeeemi/article/view/223.