Indriani, S., E. Setyoningsih, D. Titisari, and A. J. Wuryanto. “Design Of Asthma Detection Devices Through Heart Rate and Oxygen Saturation”. Indonesian Journal of Electronics, Electromedical Engineering, and Medical Informatics, Vol. 2, no. 3, Nov. 2020, pp. 143-9, doi:10.35882/ijeeemi.v2i3.6.