?url_ver=Z39.88-2004&rft_id=10.1109%2FNatPC.2011.6136353&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Muqeem%2C+S.&rft.aulast=Muqeem&rft.aufirst=S.&rft.isbn=9781457718847&rft.date=2011&rft.title=Development+of+construction+labor+productivity+estimation+model+using+artificial+neural+network&rft.genre=proceeding