1. Barnard, G. William (1997). Exploring Unseen Worlds: William James and the Philosophy of Mysticism, State University of New York Press.
2. Review of Jeremy David Engels’s The Ethics of Oneness;Dilworth;Journal of Religion,2023
3. Feinstein, Howard M. (1984). Becoming William James, Cornell University Press.
4. Ford, Marcus P. (1982). William James’ Philosophy: A New Perspective, Temple University Press.
5. The Earlier Sense of Self and Others: Merleau-Ponty and Recent Developmental Studies;Gallagher;Philosophical Psychology,1996