1Definitions of Instructional Design ,Adapted from "Training and Instructional Design",Applied Research Laboratory, Penn State University[DB/OL]. http://www.umich.edu/-ed626/define.html, 2001-06-12.
2New York: Bowker, Letter of submittal[DB/OL], http://www.cudenver.edu/-mryder/itc/idmodels.html,2001-06-12.
3What is Instructional Design? [DB/OL]. http://www.cudenver.edu/-mryder/itc/idmodels.html , 2001-06-12.
