อ้างอิง ของ โคโดเมน

  1. Forster, Thomas (2003), Logic, Induction and Sets, Cambridge University Press, p. 10–11, ISBN 9780521533614
  2. Eccles, Peter J. (1997), An Introduction to Mathematical Reasoning: Numbers, Sets, and Functions, Cambridge University Press, ISBN 978-0521597180; quote 1, quote 2
  3. Mac Lane, Saunders (1998), Categories for the working mathematician (2nd ed.), Springer, p. 8, ISBN 978-0387984032
  4. Scott, Dana S.; Jech, Thomas J. (1967), Axiomatic set theory, Symposium in Pure Mathematics, American Mathematical Society, p. 232, ISBN 978-0821802458
  5. Sharma, A.K. (2004), Introduction To Set Theory, Discovery Publishing House, p. 91, ISBN 978-8171418770
  6. Stewart, Ian; Tall, David Orme (1977), The foundations of mathematics, Oxford University Press, p. 89, ISBN 978-0198531654