?url_ver=Z39.88-2004&rft_id=10.3390%2Fcryst11020212&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Ahmad%2C+M.A.&rft.aulast=Ahmad&rft.aufirst=M.A.&rft.date=2021&rft.title=Crystals&rft.atitle=Biodiesel+purification+via+ultrasonic-assisted+solvent-aided+crystallization&rft.pages=1-12&rft.volume=11&rft.issn=20734352&rft.issue=2&rft.genre=article