6Berney T.Overview of Learning Disability in Children[J].Psychiatry,2006,5(10):346-350.
7Brewer J A.Introduction to Early Childhood Education:Preschool through Primary Grades[M].Bost on:Allyn&Bacon,1990.
8Geary D C,Hoard M K,Hamson C O.Numerical and Arithmetical Cognition:Patterns of Functions and Deficits in Children at Risk for a Mathematical Disability[J].Journal of Experimental Child Psychology,1999,(74):213-239.
9Geary D C,Hamson C O,Hoard M K.Numerical and Arithmetical Cognition:A Longitudinal Study of Process and Concept Deficits in Children with Learning Disability[J].Journal of Experimental Child Psychology,2000,(77):236-263.
10Hanich L B,Jordan N C,Kaplan D,et al.Performance across Different Areas of Mathematical Cognition in Children with Learning Difficulties[J].Journal of Education Psychology,2001,93(3):615-626.