?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.au=Maryono%2C+-&rft.aulast=Maryono&rft.aufirst=-&rft.inst=Universitas+Pendidikan+Indonesia&rft.title=KAPASITAS+ADSORPSI+GAMBUT+TERHADAP+LARUTAN+ION+MANGAN%2FMn2%2B&rft.date=21+December+2018&rft.degree=S1