Aristotle, Khorasani Sh. (Trans.) Metaphysics. Tehran: Hekmat Publication; 2015. Persian.
Dillon J. M. The Middle Platonists 80 B.C. To A.D. 220. Cornell University Press; 1977.
Gadamer H. G. Gesammelte Werke. Band 6 : Griechische Philosophie. Mohr Siebeck; 1985.
Gaiser K. Platons ungeschriebene Lehre Studien zur systematischen und geschichtlichen Begründung der Wissenschaften in der Platonischen Schule. Stuttgart: Klett-Cotta; 1998.
Gerson L. P. From Plato to Platonism. Cornell University Press; 2017.
Iamblichus, Taylor, T. (Trans.) Iamblichus' Life of Pythagoras. London: Watkins; 1818.
Krämer H. J., Catan J. R. (Trans.) Plato and the Foundations of Metaphysics: A Work on the Theory of the Principles and Unwritten Doctrines of Plato. State University of New York Press; 1990.
Krämer H. J., Colvin C. (Trans.) Fichte, Schlegel, and the Infinite Interpretation of Plato. Graduate Faculty Philosophy Journal 21; 1999.
Nikulin D. (ed.) The Other Plato: The Tübingen Interpretation of Plato's Inner-Academic Teachings. Albany: State University of New York Press; 2012.
Plato, Cooper J. M. (ed.) Plato: Complete Works. Indianapolis: Hackett; 2009.
Reale G., Catan J. R. (Trans.), Davies R. (Trans.) Toward a New Interpretation of Plato. Catholic University of America Press; 1997.
Reale G., Catan J. R. (Trans.) A History of Ancient Philosophy II: Plato and Aristotle. State University of New York Press;1990.
Szlezák T. A., Staehler T. Plato’s Unwritten Doctrines: A Discussion. Journal of Ancient Philosophy, 8(2), 160-166; 2014.
Szlezák T. A., Zanker G. (Trans.) Reading Plato. London: Routledge; 1999.