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平台:
EBSCOhost Business Source Complete
(Available from 2008/01/04 until 2010/12/06.)
ProQuest Agricultural & Environmental Science Database
(Available from 2003/03/21 until 2010/12/06.)
ProQuest Political Science Database
(Available from 2003/03/21 until 2010/12/06.)
ProQuest SciTech Premium Collection
(Available from 2003/03/21 until 2010/12/06.)