Robert Burns (1838). “The Works of Robert Burns: With an Account of His Life, and Criticism on His Writings. To which are Prefixed, Some Observations on the Character and Condition of the Scottish Peasantry”, p.40
"Ten rules for writing fiction" by Elmore Leonard, Diana Athill, Margaret Atwood, Roddy Doyle, Helen Dunmore, Geoff Dyer, Anne Enright, Richard Ford, Jonathan Franzen, Esther Freud, Neil Gaiman, David Hare, PD James, AL Kennedy, www.theguardian.com. February 19, 2010.
"Actors with Down syndrome in more films, TV; 'Glee' star Lauren Potter says 'we're just like anybody else'" By Hollie McKay, www.foxnews.com. November 20, 2012.