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平台:
EBSCOhost Academic Search Complete
(Available from 1996/06/01.)
EBSCOhost Business Source Complete
(Available from 1996/06/01.)
EBSCOhost OmniFile Full Text Select
(Available from 2007/04/01.)
JSTOR Arts and Sciences IV
(Available from 1945/03/01 volume: 93 issue: 3. Most recent 4 year(s) not available.)