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R J de Ayala
R J de Ayala is the author of "The Theory and Practice of Item Response Theory".
Books by R J de Ayala
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The Theory and Pr...
de Ayala, R. J.
Electronic book text:
$139.00
The Theory and Pr...
de Ayala, R. J.
Hardback:
$85.00
The Theory and Pr...
de Ayala, R. J.
Electronic book text:
$131.00
The Theory and Pr...
de Ayala, R. J.
Electronic book text:
$71.00