P. Cobb, E. Yackel, and T. Wood. The Emergence of Mathermatical Meaning: Interactions in Classroom Cultures, Lawrence Erlbaum Associates, Hillside, NJ, (1995)
D. Díaz, R. Ramírez, and D. Hernández-Leo. IEEE 15th International Conference on Advanced Learning Technologies (ICALT); 2015 Jul 06-Jul 09; Hualien, Taiwan.Sl: IEEE, 2015. p. 367-369., Institute of Electrical and Electronics Engineers (IEEE), (2015)