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平台:
JSTOR Arts and Sciences XV
(Available from 2006/12/01 volume: 7 issue: 2. Most recent 4 year(s) not available.)
ProQuest Literature Online
(Available from 1997/01/01 until 1997/12/31. Available from 1999/01/01 until 2002/12/31. Available from 2004/01/01.)