Hardiman, R. (1982). White identity development: A process oriented model for describing the racial consciousness of White Americans. Unpublished doctoral dissertation, University of Massachusetts, Amherst.
2.
Helms, J. E. (1984). Toward a theoretical explanation of the effects of race on counseling: A Black and White model. The Counseling Psychologist, 12(4), 153-165.
3.
Helms, J. E. (Ed.). (1990). Black and White racial identity: Theory, research, and practice. Westport, CT: Greenwood.
4.
Helms, J. E. (1992). A race is a nice thing to have: A guide to being a White person or understanding the White persons in your life. Topeka, KS: Content Communications.
5.
Mio, J. S. , & Iwamasa, G. (1993). To do, or not to do: That is the question for White cross-cultural researchers. The Counseling Psychologist, 21, 197-212.