[1]
G. M. A. Grube and Plato, The Republic. Indianapolis, Indiana: Hackett Publishing Company, 1992 [Online]. Available: https://ebookcentral.proquest.com/lib/gla/detail.action?docID=735561
[2]
J. Driver, Ethics: the fundamentals, vol. 1. Malden, Massachusetts: Blackwell Publishing, 2006 [Online]. Available: https://ebookcentral.proquest.com/lib/gla/detail.action?docID=1204064
[3]
C. J. Rowe, S. Broadie, and Aristotle, Nicomachean ethics. Oxford: Oxford University Press, 2002.
[4]
C. C. W. Taylor and Plato, Protagoras. Oxford: Oxford University Press, 2002.
