How to design and evaluate research in education:
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Bibliographic Details
Main Authors: Fraenkel, Jack R. (Author), Wallen, Norman E. (Author)
Format: Book
Language:English
Published: New York [u.a.] McGraw-Hill 1993
Edition:2. ed.
Subjects:
Physical Description:XIX, 571 S. graph. Darst.
ISBN:0070217718
0070217726

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