?url_ver=Z39.88-2004&rft_id=10.1016%2Fj.energy.2019.05.137&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=A.M.&rft.aulast=Hassan&rft.au=Hassan%2C+A.M.&rft.volume=181&rft.issn=03605442&rft.atitle=Exergy+return+on+exergy+investment+analysis+of+natural-polymer+(Guar-Arabic+gum)enhanced+oil+recovery+process&rft.pages=162-172&rft.title=Energy&rft.date=2019&rft.genre=article