?url_ver=Z39.88-2004&rft_id=10.4028%2Fwww.scientific.net%2FAMM.625.874&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Ullah&rft.au=Ullah%2C+Z.&rft.aufirst=Z.&rft.date=2014&rft.issn=16609336&rft.isbn=9783038351818&rft.volume=625&rft.atitle=Preparation+of+biodiesel+from+waste+cooking+oil+catalyzed+by+basicionic+liquid&rft.pages=874-876&rft.title=Applied+Mechanics+and+Materials&rft.genre=article