?url_ver=Z39.88-2004&rft_id=10.1109%2FNatPC.2011.6136349&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=N.S.&rft.au=Muhamad%2C+N.S.&rft.aulast=Muhamad&rft.isbn=9781457718847&rft.title=Biohydrogen+production+using+dark+and+photo+fermentation%3A+A+mini+review&rft.date=2011&rft.genre=proceeding