Pfau, Jeffrey (2008). "The Game Controller: From the Beginning". 13 Things. Joukowsky Institute for Archaeology and the Ancient World. Brown University. Retrieved July 16, 2016.
Miller II, Stanley A. (May 11, 2004). "Sony aims to take on rivals". Milwaukee Journal Sentinel. Archived from the original on October 28, 2021. Retrieved March 12, 2008.
"05 Annual Report"(PDF). Nintendo Co., Ltd. March 31, 2006. p. 65. Archived from the original(PDF) on December 15, 2005. Retrieved March 22, 2008.
"Game Boy". A Brief History of Game Console Warfare. BusinessWeek. Archived from the original on May 9, 2007. Retrieved March 22, 2008.{{cite web}}: CS1 maint: unfit URL (link)
Miller II, Stanley A. (May 11, 2004). "Sony aims to take on rivals". Milwaukee Journal Sentinel. Archived from the original on October 28, 2021. Retrieved March 12, 2008.
"Official Blog: It finally happened!". OpenPandora. May 22, 2010. Archived from the original on March 1, 2012. Retrieved May 22, 2010.{{cite web}}: CS1 maint: bot: original URL status unknown (link)