1. & ( 2003). Peace education (2nd ed.). Jefferson, NC: McFarland.
2. ( 1998). Final report: Community Peace and Safety Networks: Linking community and school-based mediation in South Africa. Washington, DC: U.S. Information Agency, Office of Citizen Exchanges Bureau of Educational and Cultural Affairs.
3. & ( 2000). Does intergroup contact reduce prejudice? Recent meta-analytic findings. In (Ed.), Reducing prejudice and discrimination (pp. 93-114). Mahwah, NJ: Erlbaum.
4. & ( 2000). Understanding the conditions and processes necessary for intergroup contact to reduce prejudice. In (Ed.), Reducing prejudice and discrimination (pp. 89-107). Mahwah, NJ: Erlbaum.
5. See also ( 1954). The nature of prejudice. Reading, MA: Addison-Wesley.