References:

 

Levenson, R. L., & Herman, J. (1991). The use of role-playing as a      technique in the psychotherapy of children. Psychotherapy, 28(4), 660-666. doi:http://dx.doi.org/10.1037/0033-3204.28.4.660

 

Green, E. J., & Christensen, T. M. (2006). Elementary school children's perceptions of play therapy in school settings. International Journal of Play Therapy, 15(1), 65-85. doi:http://dx.doi.org/10.1037/h0088908