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平台:
EBSCOhost Academic Search Complete
(Available from 2009/01/01 until 2013/01/31.)
EBSCOhost OmniFile Full Text Select
(Available from 2009/01/01 until 2013/01/31.)
EBSCOhost Political Science Complete
(Available from 2009/01/01 until 2013/01/31.)