?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aufirst=Christina+Elsa+Manuela+Wibowo&rft.au=Christina+Elsa+Manuela+Wibowo&rft.title=HUBUNGAN+NILAI+CYCLE+THRESHOLD+TERHADAP+DERAJAT+KEPARAHAN+COVID-19+DI+RUMAH+SAKIT+BETHESDA+YOGYAKARTA&rft.date=2+December+2023&rft.inst=Universitas+Kristen+Duta+Wacana&rft.degree=Bachelor