1. Bley, N. S. & Thorton, C. A. (1989).Teaching mathematics to the learning disabled (2nd ed.). Austin, TX: Pro-Ed.
2. Carpenter, T. P., & Moser, J. M. (1984). The acquisition of addition and subtraction concepts in grades one through three.Journal for Research in Mathematics Education, 15, 179–202.
3. Case, L. P., Harris, K. R., & Graham, S. (1992). Improving the mathematical problem-solving skills of students with learning disabilities: Self-regulated strategy development.The Journal of Special Education, 26, 1–19.
4. Cawley, J. & Miller, J. (1986). Selected views on metacognition, arithmetic problem solving, and learning disabilities.Learning Disabilities Focus, 2(1), 36–48.
5. Cawley, J. F., Miller, J. H., & School, B. A. (1987). A brief inquiry of arithmetic word-problem-solving among learning disabled secondary students.Learning Disabilities Focus, 2(2), 87–93.