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    How to design and evaluate research in education by Fraenkel, Jack R. 1932-

    Published 2012
    Book
  5. 5

    How to design and evaluate research in education by Fraenkel, Jack R. 1932-

    Published 2012
    Book
  6. 6

    How to design and evaluate research in education by Fraenkel, Jack R. 1932-

    Published 2009
    Book
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  8. 8
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    How to design and evaluate research in education by Fraenkel, Jack R. 1932-

    Published 2003
    Book
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