Lawrence G. Lovasik (1999). “The Hidden Power of Kindness: A Practical Handbook for Souls who Dare to Transform the World, One Deed at a Time”, p.189, Sophia Institute Press
John Gay (1826). “Gay's Fables and Other Poems: Cotton's Visions in Verse ; Moore's Fables for the Female Sex ; with Sketches of the Authors' Lives”, p.197