Dyck, V.A., author
Reston, 1984
Buku Teks
Erskine, Robert, author
Elex Media Komputindo, 1987
Buku Teks
Keedy, Mervin L., author
Addison-Wesley, 1986
Buku Teks
edited by Rachel Brown-Chidsey, Kristina J. Andren
The Guilford Press, 2005
Buku Teks
Gendell, Julien, author
West Publisihing, 1993
Buku Teks