Martocchio, Joseph J., author
Pearson Prentice Hall, 2009
Buku Teks
Greer, Charles R., author
Prentice-Hall, 2001
Buku Teks
Greer, Charles R., author
Prentice-Hall, 2001
Buku Teks
Harris, Michael
The Dryden Press , 1997
Buku Teks
Armstrong, Michael, author
Gramedia, 2003
Buku Teks