1. Jebb, R. C. 1876.Attic OratorsVol. I, Ixxv–lxxix. London
2. Murray, J. Middleton. 1922.The Problem of Style87–90. London
3. Van Hook, Larue. 1905.The Metaphorical Terminology of Greek Rhetorical and Literary Criticism40–43. Chicago
4. Van Hook.Metaphorical Terminology42
5. Plato. 1938.GorgiasEdited by: Cooper, Lane. 455New York