By Sakonidis Haralambos   Tsatsaroni Anna   Lamnias Costas   in European Journal of Teacher Education

ISSN:1469-5928|25|2-3|171-186

Routledge Ltd‎(2002)‎

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By Potari Despina   Sakonidis Haralambos   Chatzigoula Roula   Manaridis Alexandros   in Journal of Mathematics Teacher Education

ISSN:1386-4416|13|6|473-485

Springer Publishing Company ‎(2010)‎

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