Guin, D., Ruthven, K., & Trouche, L. (2005). The didactical challenge of simbolic calculators: Turning a computational device into a mathematical instrument. Springer.
Citace podle Chicago (17th ed.)Guin, Dominique, Kenneth Ruthven, a Luc Trouche. The Didactical Challenge of Simbolic Calculators: Turning a Computational Device into a Mathematical Instrument. Nueva York: Springer, 2005.
Citace podle MLA (9th ed.)Guin, Dominique, et al. The Didactical Challenge of Simbolic Calculators: Turning a Computational Device into a Mathematical Instrument. Springer, 2005.
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