Odell, P., Korgen, K., & Wang, G. (2005). Cross-racial friendships and social distance between racial groups on a college campus. Innovative Higher Education, 29(4), 291-305. doi:10.1007/s10755-005-2863-8

Pettigrew, T. F. (1998). Intergroup contact theory. Annual Review of Psychology, 49(1), 65-85. doi:10.1146/annurev.psych.49.1.65

Pettigrew, T. F., & Tropp, L. R. (2006). A meta-analytic test of intergroup contact theory. Journal of Personality and Social Psychology, 90(5), 751-783. doi:10.1037/0022-3514.90.5.751

Turner, R. N., Hewstone, M., & Voci, A. (2007). Reducing explicit and implicit outgroup prejudice via direct and extended contact: The mediating role of self-disclosure and intergroup anxiety. Journal of Personality and Social Psychology, 93(3), 369-388. doi:10.1037/0022-3514.93.3.369