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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| مؤلفون آخرون: | |
| التنسيق: | كتاب |
| منشور في: |
San Diego, Calif.
EDITS Publishers
c1981.
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| الطبعة: | 2nd ed. |
| الموضوعات: |