Banks, Arthur S.; Thomas Christian Muller; William Overstreet. Political Handbook of the World: 2008. Washington, D.C.: CQ Press. 2008: 494 [2019-06-22]. (原始内容存档于2016-06-10).
Banks, Arthur S.; Thomas Christian Muller; William Overstreet. Political Handbook of the World: 2008. Washington, D.C.: CQ Press. 2008: 494 [2019-06-22]. (原始内容存档于2016-06-10).