D. Dufresne

Training community developmental disabilities associates: a collaborative model.

O. Karan, C. Knight, S. C. Griffith, 1986, Applied research in mental retardation.

The Sibling Leadership Network: Recommendations for Research, Advocacy, and Supports Relating to Siblings of People with Developmental Disabilities

A. Kaiser, T. Heller, T. Fish, 2008 .