?url_ver=Z39.88-2004&rft_id=10.1016%2Fj.rser.2019.02.018&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Abdullah%2C+B.&rft.aulast=Abdullah&rft.aufirst=B.&rft.volume=107&rft.issn=13640321&rft.pages=37-50&rft.atitle=Fourth+generation+biofuel%3A+A+review+on+risks+and+mitigation+strategies&rft.title=Renewable+and+Sustainable+Energy+Reviews&rft.date=2019&rft.genre=article