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Virtual manipulative for developing number concept readiness among children with intellectual disabilities
Cyhoeddwyd 2015Traethawd Ymchwil -
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Number sense and operations in the primary grades hard to teach and hard to learnn
Cyhoeddwyd 2003Llyfr -
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Theory of generalized Stirling numbers and their combinatorial and statistical applications
Cyhoeddwyd 1999Traethawd Ymchwil -
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