Roger Ascham, William Aldis Wright (2010). “English Works: Toxophilus. Report of the Affaires and State of Germany. The Scholemaster”, p.30, Cambridge University Press
Roger Ascham, James Upton, Thomas Master, Sir Henry Savile (1711). “The Schoolmaster: Or, A Plain and Perfect Way of Teaching Children to Underftand, Write, and Speak the Latin Tongue”, p.136