Helen Fisher (2016). “Anatomy of Love: A Natural History of Mating, Marriage, and Why We Stray (Completely Revised and Updated with a New Introduction)”, p.62, W. W. Norton & Company
"Clinton’s Performance Was Great, But I’ll Tell You the Real Story of Bill and Hillary". "The Rush Limbaugh Show", www.rushlimbaugh.com. July 27, 2016.