Ceridono, Davide, and Daniela Viale. “Ego States in the Therapeutic Relationship and Pre- to Post-Treatment Change in Self Ego States”. International Journal of Transactional Analysis Research & Practice 4, no. 1 (January 1, 2013): 49–58. Accessed March 29, 2024. https://ijtarp.org/article/view/20786.