Stepanek, J. (June, 2000). Establishing Classroom Norms. Mathematics and Science Classrooms: Building a Community of Learners. Northwest Regional Educational Laboratory. Last updated August 2002. http://educationnorthwest.org/webfm_send/749
U.S. Department of State. Chapter 5: Seven Norms of Collaborative Work. Count Me In-Developing Inclusive International Schools. http://www.state.gov/m/a/os/43984.htm