Dolphin, Warren D., author
McGraw-HIll, 2002
Buku Teks
Prentice-Hall, 1991
Buku Referensi
Frederick S. Merritt and Jonathan T. Ricketts, editor
McGraw-Hill, Inc, 1994
Buku Referensi
Baker, Richard E., author
McGraw-Hill, 1999
Buku Referensi
Mandl, Matthew, author
Prentice-Hall, 1967
Buku Teks