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Concurso de tutores de ábaco
desde 1999
Abacus Tutor competition 2006
Photo of the Abacus tutor competition held on 2006
Abacus Tutor competition 2006
Photo of the Abacus tutor competition held on 2006
Abacus Tutor competition 2006
Photo of the Abacus tutor competition held on 2006
Abacus Tutor competition 2006
Photo of the Abacus tutor competition held on 2006
Abacus Tutor competition 2006
Photo of the Abacus tutor competition held on 2006
Abacus Tutor competition 2006
Photo of the Abacus tutor competition held on 2006
Abacus Tutor competition 2006
Photo of the Abacus tutor competition held on 2006
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