?url_ver=Z39.88-2004&rft_id=10.19026%2Frjaset.10.2462&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=U.A.&rft.au=Umar%2C+U.A.&rft.aulast=Umar&rft.title=Research+Journal+of+Applied+Sciences%2C+Engineering+and+Technology&rft.date=2015&rft.volume=10&rft.issn=20407459&rft.issue=5&rft.atitle=4D+BIM+application+in+AEC+industry%3A+Impact+on+integrated+project+delivery&rft.pages=547-552&rft.genre=article