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PUBLIC ADMINISTRATION UNDERSTANDING MANAGEMENT，POLITICS，AND LAW IN THE PUBLIC SECTOR SECOND EDITIO
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UNDERSTANDING AMERICAN GOVERNMENT EIGHTH EDITION
SUSAN WELCH JOHN GRUHL JOHN COMER SUSAN M.RIGDON著2222 年出版621 页ISBN：0534647499
PROCESSES OF CONSTITUTIONAL DECISIONMAKING CASES AND MATERIALS 2010 SUPPLEMENT FIFTH EDITION
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