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Lua i Stíl Chicago (17ú heag.)SpringerLink (Online service), Claire Wyatt Smith, John Elkins, agus Stephanie Gunn. Multiple Perspectives on Difficulties in Learning Literacy and Numeracy. New York: Springer, 2011.
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Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.