Uphold, Constance R., author
Barmarrae Books, 1999
Buku Referensi
Brody, Tom, author
Elsevier/Academic Press, 2012
Buku Teks
editor-in-chief, Thomas J. Boll ; volume editors, Suzanne Bennett Johnson, Nathan W. Perry, Jr., and Ronald H. Rozensky
American Psychological, 2004
Buku Teks
Dains, Joyce E, author
Mosby , 2007
Buku Teks
Swage, Thoreya, author
Butterworth-Heinemann , 2004
Buku Teks