Random House, Teens (2007). "The Codex Master Game". Random House, U.S.A. Retrieved 25 November 2009.
ri.gov
olis.ri.gov
"2009 RI Teen Book Award Winner". Rhode Island Office of Library and Information Services. 19 March 2009. Archived from the original on 26 November 2009. Retrieved 27 November 2009.
"2009 RI Teen Book Award Winner". Rhode Island Office of Library and Information Services. 19 March 2009. Archived from the original on 26 November 2009. Retrieved 27 November 2009.