1. Aczel, A. D. (2000).
The Mystery of the Aleph: Mathematics, the Kabbalah, and the Search for Infinity. New York, NY: Washington Square Press.
2. Conway, J. H. (2007, Sept 26). Surreal Numbers.
The Math Factor. Podcast retrieved from
http://mathfactor.uark.edu/category/the-mathfactor-podcast/infinity/.
3. Oluseyi, H. (TEXx Talks). Infinity Explained in 3 Minutes. Retrieved from
https://www.youtube.com/watch?v=45pTq0ADz6o.
4. (Numberphile). (2012, July 6). Infinity Is Bigger Than You Think. Retrieved from
https://www.youtube.com/watch?v=elvOZm0d4H0.
5. Birkhoff, G. (1942).
Generalized arithmetic. Duke University Press. Retrieved from
https://projecteuclid.org/download/pdffirstpage_1/euclid.dmj/1077493225.