P. Cobb, E. Yackel, и T. Wood. The Emergence of Mathermatical Meaning: Interactions in Classroom Cultures, Lawrence Erlbaum Associates, Hillside, NJ, (1995)
P. Cobb, и H. Bauersfeld. The Emergence of Mathermatical Meaning: Interactions in Classroom Cultures, Lawrence Erlbaum Associates, Hillside, NJ, (1995)