Chia, Noel Kok Hwee - Tee Ng, Angie Gek. “An Investigation on the Error Patterns in Computation of Whole Numbers Committed by Singaporean Children With Dyscalculia”. Journal of the American Academy of Special Education Professionals 5/2 (June 15, 2010), 5-37. https://doi.org/10.64546/jaasep.102