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Behavior Modification|January 1, 1991
Effectiveness of a peer-helper intervention to increase children's social interactions. Generalization, maintenance, and social validityJ S Christopher, D J Hansen, V M MacMillanBehavior Modification|July 1, 1993
Social-skills interventions with adolescents. Current issues and proceduresJ S Christopher, D W Nangle, D J HansenPageof 1