Browne, Dan, author
McGraw-Hill, 1974
Buku Teks
Hennessy, Michael, author
Random House, 1988
Buku Teks
Robinson, Jeremy
New York: McGraw-Hill, 1979
Buku Teks
Wilson, J. Douglas (John Douglas), author
McGraw-Hill, 1973
Buku Teks
Lazenby, Gina, author
Conran Octopus, 1999
Buku Referensi