Fyodor Dostoevsky, Jane Austen, Lewis Carroll, Charlotte Perkins Gilman, Sir Arthur Conan Doyle (2014). “The 10 Greatest Books of All Time”, p.452, Google Publishing
Theodore Roosevelt (2015). “Theodore Roosevelt on Bravery: Lessons from the Most Courageous Leader of the Twentieth Century”, p.13, Skyhorse Publishing, Inc.
Augusten Burroughs (2012). “This Is How: Proven Aid in Overcoming Shyness, Molestation, Fatness, Spinsterhood, Grief, Disease, Lushery, Decrepitude & More. For Young and Old Alike.”, p.30, Macmillan