References: The Convention/Expo Summit

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Allen , M. J. and Yen , W. M. 1979 . Introduction to Measurement Theory. , Belmont , CA : Wadsworth, Inc .
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Cook , T. D. and Campbell , D. T. 1979 . Quasi-experimentation. , Boston : Houghton Mifflin Company .
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The Convention/Expo Summit

The First Decade

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