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
| المؤلف الرئيسي: | |
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| التنسيق: | كتاب |
| اللغة: | English |
| منشور في: |
San Diego, Calif.
R. R. Knapp
[c1971]
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| الموضوعات: |