Ori Hofmekler (2009). “The Warrior Diet: Switch on Your Biological Powerhouse For High Energy, Explosive Strength, and a Leaner, Harder Body”, p.112, North Atlantic Books
"Interview: Justin Bieber Talks About His Top 5 Rappers, Selena Gomez, and Growing Up In The Game". Interview with Joe la Puma, www.complex.com. March 30, 2012.