?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aufirst=Natalia+Yuliana+Cristina&rft.au=Natalia+Yuliana+Cristina&rft.tpages=27&rft.date=11+March+2023&rft.title=PROFIL+CEMARAN+KROMIUM+DAN+AKUMULASINYA+PADA+IKAN+DI+MUARA+SUNGAI+OPAK+KABUPATEN+BANTUL&rft.degree=Bachelor&rft.inst=Universitas+Kristen+Duta+Wacana