Holdsworth, Brian, author
Butterworths, 1982
Buku Teks
Gothmann, William H.
Prentice-Hall, 1982
Buku Teks
Ryan, Ray
Glencoe Division, Macmillan/McGraw-Hill, 1993
Buku Teks
Strangio, Christopher E., author
Prentice-Hall, 1980
Buku Teks
Strangio, Christopher E., author
Prentice-Hall, 1984
Buku Teks