edited by Rachel Brown-Chidsey, Kristina J. Andren
The Guilford Press, 2005
Buku Teks
Hall, J. Oliver, author
America Book Company, 1958
Buku Teks
Gendell, Julien, author
West Publisihing, 1993
Buku Teks
Pokras, Sandy, author
Kogan Page, 1990
Buku Teks
Bennet, William Ralph, author
Prentice-Hall, 1976
Buku Teks