Marsudi Tangguh Dwi Sasongko and Rini Suwartika 2024. Design and Build Uno Android-Based Heart Rate Detector to Support First Aid Performance at PMI Kebumen Regency. Jurnal E-Komtek (Elektro-Komputer-Teknik). 8, 2 (Dec. 2024), 528-537. DOI:https://doi.org/10.37339/e-komtek.v8i2.2184.