Kanyarat Dadphan และผู้แต่งคนอื่นๆ. (2007) A design of virtual classroom environment for project-based learning in higher education. Chulalongkorn University:ม.ป.ท.Kanyarat Dadphan และผู้แต่งคนอื่นๆ. 2007. A design of virtual classroom environment for project-based learning in higher education. ม.ป.ท.:Chulalongkorn University;Kanyarat Dadphan และผู้แต่งคนอื่นๆ. A design of virtual classroom environment for project-based learning in higher education. ม.ป.ท.:Chulalongkorn University, 2007. Print.