Irwadi, I., Elfira, Y. and Fatimah, F. 2023. The Impact of COVID-19 Infection History on Oxygen Saturation in Elective Surgery Patients. Indonesian Journal of Global Health Research. 5, 4 (Nov. 2023), 1059-1068. DOI:https://doi.org/10.37287/ijghr.v5i4.4783.