Adler, S. (1993). Acting Technique. Translated by Damoud, A. Tehran: Markaz Publishing.
Daniels, D. & Price, V. (2009). Enneagram Personality, What is Your Path to Happiness?. Translated by Seyyedmohammadi, N. Tehran: Arasbaran.
Glasser, W. (1998). The New Psychology of Personal Freedom. Translated by Firouzbakht, M. Tehran: Rasa.
Ikhazo, O. (2010). Nine Personality Types. Translated by Asefi, M. Tehran: Farhang Noor.
Mokamelli, H. (2017). Khak Shirin and Two Plays This Photo That Remains and Kamin Jaleh. Tehran: Surah Mehr. (in Persian).
Pakdaman, M. (2015). “Characterization methods of the Holy Defense radio plays of the 1970s and 1980s and their impact on the success of these plays from the experts’ point of view”. [Master's thesis]. (in Persian).
Palmer, H. (2016). The Enneagram of Personality in Work and Life. Translated by Alvandi, E. Tehran: Rasa Cultural Services.
Parsa, S. A. & Moradi, I. (2013). Typology of Sadegh Hedayat's Fictional Characters with Emphasis on Enneagram Classification. Specialized Quarterly of Fiction Studies, 1(23), 5-22. (in Persian).
Pierce, H. (2012). A New Look at the Enneagram of Nine Personality Types. Translated by Nazli, P. Tehran: Tamadon Elmi.
Rezaei, B. & Gorji, M.. (2017). Psychological analysis of the personality type of the king in the story of the king and the concubine of the Masnavi based on the enneagram model. Literary Textual Studies Quarterly, 21(71), 169-192. (in Persian).
Risso, R. & Hudson, R. (2018). Understanding and Receiving the Enneagram. Translated by Vaezi, J. Tehran: Marketing Publishing.
Shabani-Banki, Sh. & Shafiei, I. (2014). Feasibility study of determining the personality type of characters from the heart of the play based on the opinions of Jung, Horney and the commentators of the enneagram. Theater Quarterly, 4(89), 13-54. (in Persian).
Stanislavsky, K. (2014). Role-playing (The Work of an Actor on a Role). Translated by Oskoui, M. Third Edition. Tehran: Soroush.
Tiger, P. D. & Baron, B. (2014). The Art of Understanding People. Translated by Gozarabadi, M. Tehran: Hermes.