?url_ver=Z39.88-2004&rft_id=10.17509%2Fijost.v7i2.45831&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Kurniawan&rft.au=Kurniawan%2C+T.&rft.aufirst=T.&rft.title=Indonesian+Journal+of+Science+and+Technology&rft.date=2022&rft.issue=2&rft.volume=7&rft.issn=25281410&rft.pages=171-186&rft.atitle=Conversion+of+Green+Silica+from+Corn+Leaf+into+Zeolites+Na+A-X&rft.genre=article