?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.au=31160005%2C+Annabelle+Indryana+Purwanto&rft.aulast=31160005&rft.aufirst=Annabelle+Indryana+Purwanto&rft.inst=Universitas+Kristen+Duta+Wacana&rft.degree=Bachelor&rft.tpages=25&rft.date=12+September+2020&rft.title=LOGAM+BERAT+TIMBAL+(Pb)+PADA+IKAN+NILA+(Oreochromis+niloticus)+DAN+IKAN+BAWAL+(Colossoma+macropomum)+DI+SUNGAI+WINONGO%2C+YOGYAKARTA