Sereyraseth Hang และ Noppadon Jokkaw. (2010) A study of Knowledge and competency levels of construction project managers :. Chulalongkorn University,:ม.ป.ท.Sereyraseth Hang และ Noppadon Jokkaw. 2010. A study of Knowledge and competency levels of construction project managers :. ม.ป.ท.:Chulalongkorn University,;Sereyraseth Hang และ Noppadon Jokkaw. A study of Knowledge and competency levels of construction project managers :. ม.ป.ท.:Chulalongkorn University, 2010. Print.