27 December 2011 | Publisher: United States Bureau of Citizenship and Immigration Services | Document type: Thematic Guidelines
22 December 2009 | Publisher: UN High Commissioner for Refugees (UNHCR) | Document type: Thematic Guidelines
8 July 2008 | Publisher: UN High Commissioner for Refugees (UNHCR) | Document type: Thematic Guidelines
June 2003 | Publisher: Cambridge University Press | Document type: Thematic Guidelines
7 May 2002 | Publisher: UN High Commissioner for Refugees (UNHCR) | Document type: Thematic Guidelines