Cowan, Danny; Hartel, Brady (August 2008). "Feature: When Game Companies Strike Back"(PDF). Hardcore Gamer. Vol. 4, no. 3. United States. p. 39. Archived(PDF) from the original on 16 March 2016. Retrieved 21 September 2016.
Cowan, Danny; Hartel, Brady (August 2008). "Feature: When Game Companies Strike Back"(PDF). Hardcore Gamer. Vol. 4, no. 3. United States. p. 39. Archived(PDF) from the original on 16 March 2016. Retrieved 21 September 2016.