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Barnes, Johnathan, The Presocratic Philosophers, Routledge, London, (1989).
Copleston, Frederick, Volume 1, History of Greek and Roman philosophy, Translated by Seyyed Jalal al-Din Mojtabavi, Edition 4, Tehran: Cultural and Scientific Publishing Co and Soroush Press, (2001).
Cornford, F. M., Plato's Theory of Knowledge, fifth impression, Routledge & Kegan Paul, London, (1960).
Diels, H. and Kranz, Ancilla to the Pre-Socratic Philosophers, A complete translation of the Fragments in Diels Fragment der Vorsokratiker by: Kathleen Freeman, Cambrifge, Massachusetts: Harvrd University press, (1948).
Durant, William James, History of Civilization, Volume 2, A group of translators, Tehran: Teaching Islamic Revolution, (1991).
Foroughi, M. A, Development of Philosophy in Europe, Alborz Publication, Tehran, (1996).
Guthrie, W. K. C, History of Greek Philosophy, Vol 2: Anaximander & Anoximenes, Translated by Hassan Fathy, Fekr-e-rouz publications, (1996).
Guthrie, W. K. C, History of Greek Philosophy, Vol 10: Sophists (Part One), Translated by Hassan Fathy, Fekr-e-rouz publications, (1996).
Guthrie, W. K. C, History of Greek Philosophy, Vol 11: Sophists (Part Two), Translated by Hassan Fathy, Fekr-e-rouz publications, (1996).
Guthrie, W. K. C, A History of Greek Philosophy, Volume One, Cambridge University Press, London, (1962).