Phalla Chea และผู้แต่งคนอื่นๆ. (2012) Host country perspective on the free movement of workers in an economic community : Germany and Thailand. Chulalongkorn University:ม.ป.ท.Phalla Chea และผู้แต่งคนอื่นๆ. 2012. Host country perspective on the free movement of workers in an economic community : Germany and Thailand. ม.ป.ท.:Chulalongkorn University;Phalla Chea และผู้แต่งคนอื่นๆ. Host country perspective on the free movement of workers in an economic community : Germany and Thailand. ม.ป.ท.:Chulalongkorn University, 2012. Print.