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(原始内容存档于2020-07-25). Gordon Brown's memoirs: Oh me, oh my: Why Gordon Brown won't be believed by everyone. The Economist (The Economist Group). 2010-11-29
(原始内容存档于2013-05-04). Economist Rankings at IDEAS. University of Connecticut. [2008-09-07]. (原始内容存档于2016-05-12). Pendlebury, David A. Understanding Market