References
Ross, S.M., & Morrison, G.R. (1989). In search of a happy medium in instructional technology research: Issues concerning external validity, media replications, and learner control.Educational Technology Research and Development, 37 19–34.
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Ross, S.M. From ingredients to recipes ... and back: It's the taste that counts. ETR&D 42, 5–6 (1994). https://doi.org/10.1007/BF02298089
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DOI: https://doi.org/10.1007/BF02298089