Warne, Alex (January 29, 2011). "Angry Birds Going Big Time". Daily News Pulse. Archived from the original on August 22, 2011. Retrieved September 16, 2011.
Warne, Alex (January 29, 2011). "Angry Birds Going Big Time". Daily News Pulse. Archived from the original on August 22, 2011. Retrieved September 16, 2011.