References
- Wigger, J. (2011). See-through knowing: Learning from children and their invisible friends. Journal of Childhood and Religion, 2(3), 1–34.
- Wigger, J. B., Paxson, K., & Ryan, L. (2013). What do invisible friends know? Imaginary companions, God, and theory of mind. International Journal for the Psychology of Religion, 23(1), 2–14. doi:10.1080/10508619.2013.739059