Al-Agele, Hatem, و Sajjad Al-Kaabi. 2016. Identificatio N Of Key Factors Affecting Waste Management In Life Cycle Of The Construction Project By Using Delphi Technique. مجلة الهندسة 22 (7), 19-34. http://joe.uobaghdad.edu.iq/index.php/main/article/view/187.