Sunarto, S., L. Devy Anggraini, and A. Mardi Harnanto. “Differences in the Effect of Deep Breathing and Prone Position on the Oxygen Saturation Value Among COVID-19 Survivors in a Sub-District of East Java Province”. Journal of Bionursing, Vol. 5, no. 2, June 2023, pp. 245-52, doi:10.20884/1.bion.2023.5.2.190.