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…& Headley, E. L. (1990). A Survey of Current Case Activity
in Business Schools. Midwest Society for Case Research.
Headley, D. E., Ross, R. H., & Headley, E. L. (1989). Cases as a Learning Tool: The
Student's Perespective. Midwest Society for Case Research.
Headley, D. E., Ross, R. H., & Headley, E. L. (1988). The Educational Impact of
Classroom Cases as an …
https://www.wichita.edu/academics/business/marketing/_documents/DHeadley.pdf