?url_ver=Z39.88-2004&rft_id=10.3390%2Fpr8121569&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=T.&rft.au=Kurniawan%2C+T.&rft.aulast=Kurniawan&rft.atitle=Improving+ammonium+sorption+of+bayah+natural+zeolites+by+hydrothermal+method&rft.pages=1-11&rft.volume=8&rft.issn=22279717&rft.issue=12&rft.date=2020&rft.title=Processes&rft.genre=article