1. World prison population list;Walmsley,2009
2. Prison system in number 2005–2009;Linckens,2010
3. Body of principles for the protection of all persons under any form of detention or imprisonment,1988
4. Recommendation Rec(2006) of the Committee of Ministers to member states on the European prison Rules,2006
5. The health of prisoners;Fazel;Lancet,2011