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Perkins, David. Smart Schools. New York: Simon and Schuster, Inc., 1993.
National Council for the Social Studies, Expectations of Excellence: Curriculum Standards for Social Studies. Washington, D.C.: National Council for the Social Studies, 1994.
Hartoonian, Michael H., and Margaret A. Laughlin, Succeed with the Standards in Your Social Studies Classroom. Portland, ME: J. Weston Walch, 1997.
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