1. Recommended practices in early intervention/early childhood special education assessment;S. J.Bagnato;DEC recommended practices in early intervention/early childhood special education,2005
2. Assistive technology for every child.;B. F.Boyd;Montessori Life,2008
3. Buckleitner, W. (1999). The state of children’s software evaluation-Yesterday, today and in the 21st century. Information Technology in Early Childhood Education, (1), 211-220.