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Research council's handbook;a compendium of statistical and explanatory information about state and local government in WashingtonBookمنشور في 1968
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Writing Research Papersonline classمنشور في 2014
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SPSS for Academic Researchonline classمنشور في 2017
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Alcohol research & healththe journal of the National Institute on Alcohol Abuse and AlcoholismGovernment Document Journalمنشور في 1999