Handbook in research and evaluation a collection of principles, methods, and strategies useful in the planning, design, and evaluation of studies in education and the behavioral sciences
| 1. autor: | |
|---|---|
| Format: | Książka |
| Język: | English |
| Wydane: |
San Diego, Calif.
R. R. Knapp
[c1971]
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| Hasła przedmiotowe: |