Wright, Richard T.
Pearson Education, 2002
Buku Teks
Cunningham, William P., author
McGraw-Hill, 2001
Buku Teks
Cunningham, William P., author
McGraw-Hill, 2003
Buku Teks
Cunningham, William P., author
McGraw-Hill, 2013
Buku Teks
Kaufmann, Robert K., author
McGraw-Hill, 2008
Buku Teks