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Ployhart, Robert E., Vandenberg, Robert J.. (). Longitudinal research: the theory, design, and analysis of change . : Southern Management Association.

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Ployhart, Robert E., Vandenberg, Robert J.. Longitudinal research: the theory, design, and analysis of change. : Southern Management Association, . Text.

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Ployhart, Robert E., Vandenberg, Robert J.. Longitudinal research: the theory, design, and analysis of change. : Southern Management Association, . Text.

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Ployhart, Robert E., Vandenberg, Robert J.. Longitudinal research: the theory, design, and analysis of change. : Southern Management Association, . Print.