Borich, Gary D., author
Falmer Press, 1995
Buku Teks
Adams, Anthony
Falmer Press, 1995
Buku Teks
Springer, Steve
McGraw-Hill, 2011
Multimedia
Justin Dillon, Meg Maguire, editor
McGraw-Hill, 2011
Buku Teks
Moore, Kenneth D.
Random House , 1989
Buku Teks