Mantzanas, Michail K. “Philosophical Psychology: The Philosophical Theory of Epictetus and Its Influence on the Psychological Theory of Albert Ellis”. Ηθική. Περιοδικό φιλοσοφίας, no. 5 (March 25, 2020): 17–28. Accessed June 1, 2026. https://ejournals.epublishing.ekt.gr/index.php/ethiki/article/view/22686.