Sumaratih, L., Soedono, R. and Aditianingsih, D. 2019. The Comparison of High Flow Nasal Cannula Oxygen and Conventional Oxygen Therapy on Early Effect Hemodynamic Indicators in Post – Upper Abdominal Surgery Patients: A Pilot Study. Bioscientia Medicina : Journal of Biomedicine and Translational Research. 3, 4 (Oct. 2019), 10-20. DOI:https://doi.org/10.32539/bsm.v3i4.99.