Agency,accessed on June 29, 2011. World Economic Outlook Database, April 2011 (页面存档备份,存于互联网档案馆), International Monetary Fund. Accessed on June 29, 2011
power in international relations. [14 March 2015]. (原始内容存档于2015-09-24). Tobias Harris, 'Japan Accepts its "Middle-Power" Fate'. Far Eastern Economic Review