?url_ver=Z39.88-2004&rft_id=10.1016%2Fj.ijhydene.2019.02.061&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=Y.W.&rft.aulast=Cheng&rft.au=Cheng%2C+Y.W.&rft.title=International+Journal+of+Hydrogen+Energy&rft.date=2019&rft.issue=18&rft.volume=44&rft.issn=03603199&rft.atitle=Syngas+from+catalytic+steam+reforming+of+palm+oil+mill+effluent%3A+An+optimization+study&rft.pages=9220-9236&rft.genre=article