Autor: Koegel, 3 titluri

The Prt Pocket Guide: Pivotal Response Treatment for Autism Spectrum Disorders, Paperback

Koegel,Robert L.

The Exceptional Presenter: A Proven Formula to Open Up and Own the Room, Hardcover

Timothy J. Koegel

Mind Over Math: Put Yourself on the Road to Success by Freeing Yourself from Math Anxiety, Paperback/Stanley Kogelman

Stanley Kogelman