Feldman, David (31 March 2011), The Constitutional Reform Process, Cambridge, United Kingdom: Faculty of Law, University of Cambridge, 21-bet, 13 October 2011da asl nusxadan(Written Evidence submitted to the House of Lords Select Committee on the Constitution) arxivlandi, qaraldi: 29 January 2012
Feldman, David (31 March 2011), The Constitutional Reform Process, Cambridge, United Kingdom: Faculty of Law, University of Cambridge, 21-bet, 13 October 2011da asl nusxadan(Written Evidence submitted to the House of Lords Select Committee on the Constitution) arxivlandi, qaraldi: 29 January 2012