?url_ver=Z39.88-2004&rft_id=10.1080%2F17597269.2019.1583715&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Abdulkadir%2C+B.A.&rft.aulast=Abdulkadir&rft.aufirst=B.A.&rft.atitle=RETRACTED+ARTICLE%3A+Study+on+the+influence+of+Mg+and+catalytic+activity+of+SAPO-34+on+biodiesel+production+from+rambutan+seed+oil&rft.title=Biofuels&rft.issn=17597269&rft.date=2020&rft.genre=article