Davies, Douglas, 1942-
Child development : a practitioner's guide
Guilford Press, 1999
 Buku Teks SO
Davies, Douglas, 1942-
Child development: a practitioner's guide
Guilford Press, 2004
 Buku Teks
Griffith, Colin
The Companion to Homoeopathy: The Practitioner's Guide
Watkins Publishing, 2005
 Buku Teks SO
Clinical psychology and people with intellectual disabilities
editors, Eric Emerson [and others]
John Wiley & Sons, 1999
 Buku Teks SO
Evidence-based practice and intellectual disabilities
edited by Peter Sturmey and Robert Didden
Wiley-Blackwell, 2014
 Buku Teks