1. Beebe, J. (2016). Energies and patterns in psychological type: The reservoir of consciousness. London/New York: Routledge.
2. Jung, C. G. (1912/1956). Symbols of transformation (trans: Hull, R. F. C.). Collected works of C. G. Jung, vol. 5. Princeton: Princeton University Press.
3. Jung, C. G. (1921/1971). Psychological types (trans: Baynes, H. G. & Hull, R. F. C.). Collected works of C. G. Jung, vol. 6. Princeton: Princeton University Press.
4. Jung, C. G. (1928/1960). On psychic energy. In The structure and meaning of the psyche (trans: Hull, R. F. C.). Collected works of C. G. Jung, vol. 8, pp. 3–66. Princeton: Princeton University Press.
5. Myers, I. B. (with Myers, P. B.) (1980). Gifts differing: Understanding personality type. Palo Alto: Consulting Psychologists Press.