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
| Príomhchruthaitheoir: | |
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| Formáid: | LEABHAR |
| Teanga: | English |
| Foilsithe / Cruthaithe: |
San Diego, Calif.
R. R. Knapp
[c1971]
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| Ábhair: |