text: 159. Walmsley, Roy. World Prison Population List (PDF). King's College London, International Centre for Prison Studies. 2005 [2007-10-19]. （nano nina’angan tilid (PDF) i 2007-06-28）. For the latest data, see Prison Brief for United States of America. King's College London, International Centre for Prison Studies. 2006-06-21 [2007-10-19]. （nano nina’angan tilid i 2007-08-04）. For other estimates of the incarceration rate in China and North Korea see Adams, Cecil. Does the United States Lead the World in Prison Population?. The Straight Dope. 2004-02-06 [2007-10-11]. （nano nina’angan tilid i 2008-09-15）.