?url_ver=Z39.88-2004&rft_id=10.1109%2FICCISci.2012.6297298&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=S.&rft.aulast=Muqeem&rft.au=Muqeem%2C+S.&rft.isbn=9781467319386&rft.date=2012&rft.title=Application+of+Fuzzy+expert+systems+for+construction+labor+productivity+estimation&rft.genre=proceeding