1. TACTOPI: A playful approach to promote computational thinking for visually impaired children;Abreu,2020
2. Grasping numerosity among blind children;Ahlberg,1994
3. How children who are blind experience numbers;Ahlberg;Journal of Visual Impairment & Blindness,1999
4. The abacus: Instruction by teachers of students with visual impairments;Amato;Journal of Visual Impairment & Blindness,2013
5. TanMath: A tangible math application to support children with visual impairment to learn basic arithmetic;Ávila-Soto,2017