24 March 2014 | Publisher: United States Congressional Research Service | Document type: Research, Background and Discussion Papers
3 March 2011 | Publisher: United States Congressional Research Service | Document type: Research, Background and Discussion Papers
1 March 2011 | Publisher: United States Congressional Research Service | Document type: Research, Background and Discussion Papers
28 February 2011 | Publisher: United States Congressional Research Service | Document type: Research, Background and Discussion Papers
May 2010 | Publisher: Afghanistan Research and Evaluation Unit (AREU) | Document type: Research, Background and Discussion Papers