Fata, Ulfa Husnul, and Lutvi Febriana. 2021. “Oxygen Saturation (SPO2) in Covid-19 Patients”. Jurnal Ners Dan Kebidanan (Journal of Ners and Midwifery) 8 (3):290-94. https://doi.org/10.26699/jnk.v8i3.ART.p290-294.