Kemp, J. E., & Smellie, D. C. (1989). Planning, producing, and using instructional media (6th ed.). Harper & Row.

Kemp, Jerrold E., and Don C. Smellie. Planning, Producing, and Using Instructional Media. 6th ed. New York: Harper & Row, 1989.

Kemp, Jerrold E., and Don C. Smellie. Planning, Producing, and Using Instructional Media. 6th ed. Harper & Row, 1989.