Baker, R. L., & Schutz, R. E. (1971). Instructional product development. Van Nostrand.
Tohutoru Kātū Chicago (17th ed.)Baker, Robert L., me Richard E. Schutz. Instructional Product Development. New York: Van Nostrand, 1971.
Tohutoro MLA (9th ed.)Baker, Robert L., me Richard E. Schutz. Instructional Product Development. Van Nostrand, 1971.
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