Teaching specific requests : A comparative analysis on skill acquisition and preference using two augmentative and alternative communication aids / [et al.]
- 169-178
- 28, No. 2, 1993
Diciembre 1993
= EDUCATION AND TRAINING IN MENTAL RETARDATION
AYUDAS EN LA COMUNICACION (PARA DISCAPACITADOS) DESARROLLO DE HABILIDADES RETRASO MENTAL