1. Developmental test of visual–motor integration;Beery,1989
2. Motor-free visual perception test;Colarusso,1972
3. Visually directed reaching of children with motor impairments;Forsstrøm;Developmental Medicine and Child Neurology,1982
4. The Frostig program for the development of visual perception;Frostig,1964
5. Inconsistency and adaptation in timing of clumsy children;Geuze;Journal of Human Movement Studies,1987