Faragher R, Clarke B, eds. (2013). "Introduction". Educating Learners with Down Syndrome: Research, theory, and practice with children and adolescents. Taylor & Francis. p. 5. ISBN978-1-134-67335-3. Archived from the original on 2017-01-23.
Faragher R, Clarke B, eds. (2013). "Introduction". Educating Learners with Down Syndrome: Research, theory, and practice with children and adolescents. Taylor & Francis. p. 5. ISBN978-1-134-67335-3. Archived from the original on 2017-01-23.