Savittree Rochanasmita Arnold และ Bupphachart Tunhikorn. (2008) The Development of a course to enhance pre-service science teachers' professional knowledge. Kasetsart University,:ม.ป.ท.Savittree Rochanasmita Arnold และ Bupphachart Tunhikorn. 2008. The Development of a course to enhance pre-service science teachers' professional knowledge. ม.ป.ท.:Kasetsart University,;Savittree Rochanasmita Arnold และ Bupphachart Tunhikorn. The Development of a course to enhance pre-service science teachers' professional knowledge. ม.ป.ท.:Kasetsart University, 2008. Print.