?url_ver=Z39.88-2004&rft_id=10.1109%2FICACC.2009.128&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=C.&rft.au=Utomo%2C+C.&rft.aulast=Utomo&rft.isbn=9780769535166&rft.title=Methodology+for+multi+criteria+group+decision+and+negotiation+support+on+value-based+decision&rft.date=2009&rft.genre=proceeding