Carpenter, Mason A.
Pearson, 2007
Buku Teks
Dess, Gregory G., author
McGraw-Hill/Irwin, 2004
Buku Teks
Dess, Gregory G., author
MCGraw-Hill , 2004
Multimedia
Glueck, William F., author
McGraw-Hill, 1984
Buku Teks
Wright, Peter, author
Prentice-Hall, 1998
Buku Teks