1. Vision and kinesthesis in motor movements;Anwar,1983
2. Human memory: A proposed system and its control processes;Atkinson,1968
3. Behavioral traps in the preschool: A proposal for research;Baer,1976
4. Problems in comparative studies of mental retardates and normals;Baumeister;American Journal of Mental Deficiency,1967
5. Systems for basic instruction: Theory and applications;Becker,1978