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2
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Principles of educational measurement and evaluation / Gilbert Sax.
- 371.260973 S272p
- Sax, Gilbert.
- Wadsworth Pub. Co.,
- c1974.
- Belmont, Calif. :
-
Educational research : a guide to the process / Norman E. Wallen.
- 370.72 W197 1974
- Wallen, Norman E.
- Wadsworth Publishing Company,
- c1974.
- Belmont, Calif. :