?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Al-Kayiem&rft.au=Al-Kayiem%2C+H.H.&rft.aufirst=H.H.&rft.title=Journal+of+Engineering+Science+and+Technology&rft.issn=18234690&rft.atitle=Augmentation+of+ribs+turbulators+height+on+the+hydrothermal+performance+of+double+pipe+heat+exchanger&rft.issue=2&rft.volume=12&rft.date=2017&rft.pages=548-563&rft.genre=article