Aasgaard, Reidar & Horn, Cornelia: Childhood in History: Perceptions of Children in the Ancient and Medieval Worlds, s. 248. Routledge, 2017. ISBN 9781317168935. Teoksen verkkoversio.
Jamblique & Ackermann, Hans-Wolfgang & Clark, E. Gillian (toim.): On the Pythagorean Life, s. 9. Greek series, Translated texts for historians, nide 8. Liverpool University Press Series. Liverpool University Press, 1989. Teoksen verkkoversio.
Rosenblum, Jordan D. & DesRosiers, Nathaniel & Vuong, Lily (toim.): Religious Competition in the Third Century CE: Jews, Christians, and the Greco-Roman World, s. 32. Journal of Ancient Judaism. Supplements, nide 15. Society of Biblical Literature. Annual Meeting. Vandenhoeck & Ruprecht, 2014. ISBN 9783525550687. Teoksen verkkoversio.
Caiazzo, Irene & Macris, Constantinos & Robert, Aurélien: Brill's Companion to the Reception of Pythagoras and Pythagoreanism in the Middle Ages and the Renaissance, s. 201–. Brill's Companions to Classical Reception. Brill, 2021. ISBN 9789004499461. Teoksen verkkoversio.
Taylor, Joan E. & Hay, David M.: Philo of Alexandria: On the Contemplative Life: Introduction, Translation and Commentary, s. 30. Philo of Alexandria Commentary Series. Brill, 2020. ISBN 9789004439238. Teoksen verkkoversio.
De Temmerman, Koen: The Oxford Handbook of Ancient Biography, s. 352. Oxford Handbooks Series. Oxford University Press, 2020. ISBN 9780198703013. Teoksen verkkoversio.
stanford.edu
plato.stanford.edu
Huffman, Carl: PythagorasThe Stanford Encyclopedia of Philosophy. The Metaphysics Research Lab. Stanford University. (englanniksi)