References
- Euclid-Heath, T. L. (1956). The Thirteen Books of Euclid’s Elements, 2nd ed. New York: Dover.
- Fraleigh, J. B. (2003). A First Course in Abstract Algebra, 7th ed. London: Pearson.
- Heath, T. L. (1981). From Thales to Euclid: A History of Greek Mathematics, Vol. 1. New York: Dover.