?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=Ludianto+%2C+&rft.au=Ludianto+%2C+%2C+Nugroho+&rft.aufirst=Nugroho%09&rft.title=OPTIMASI+PROSES+EKSTRAKSI+STRIPPING+ITRIUM+(Y)+DARI+KONSENTRAT+LOGAM+TANAH+JARANG+HASIL+OLAH+PASIR+SENOTIM&rft.inst=UNY&rft.date=16+September+2010&rft.degree=S1