?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.au=Marzellyno+Rafhael+Mailissa&rft.aufirst=Marzellyno+Rafhael+Mailissa&rft.inst=Universitas+Kristen+Duta+Wacana&rft.degree=Final+Year+Projects+(S1)&rft.title=DETEKSI+AWAL+KONTAMINASI+COLIFORM+AIR+MINUM+DI+DEPOT+ISI+ULANG+KECAMATAN+UMBULHARJO+YOGYAKARTA&rft.date=3+December+2022