9Keller,J.M.Motivational design of instruction.In C.M.Reigeluth (Ed.),Instructional design theories and models:An overview of their current status. Hillsdale,NJ:Lawrence Erlbaum Associates, 1983.
10Keller,J.M.,& Kopp,T.W.Application of the ARCS model to motivational design.In C.M.Reige21uth ( Ed. ).Instructional Theories in Action:Lessons Illustrating Selected Theories. New York: Lawrence Erlbaum,Publishers, 1987:289 - 320.