Teorey, Toby J., author
Englewood Cliffs, NJ: Prentice-Hall, 1982
Buku Teks
Teorey, Toby J., author
Prentice-Hall, 1982
Buku Teks
Rob, Peter, author
Course Technology, 2002
Buku Teks
Rob, Peter, author
Wadsworth, 1993
Buku Teks
Connolly, Thomas M., author
Addison-Wesley , 2005
Buku Teks