?url_ver=Z39.88-2004&rft_id=10.1201%2Fb21942-32&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Umar%2C+U.A.&rft.aufirst=U.A.&rft.aulast=Umar&rft.isbn=9781138029781&rft.title=Ranking+of+principal+causes+of+construction+waste+for+malaysian+residential+project&rft.date=2016&rft.genre=proceeding