David J Weiss grāmatas
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-30%
The Theory and Practice of Item Response Theory, Second Edition
David J. Weiss, R. J. de Ayala, Bruno D. Zumbo, Mark Reckase, Scott Hofer
123,09 €
175,85 €
-30% ar kodu BOOKS
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-30%
Computerized Adaptive Testing: From Concept to Implementation
110,20 €
157,43 €
-30% ar kodu BOOKS
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