Robinson, Jeremy
New York: McGraw-Hill, 1979
Buku Teks
Calloway, Stephen
Simon and Schuster, 1996
Buku Referensi
Stephen Calloway, general editor ; Elizabeth Cromley, consultant editor
Simon & Schuster, 1996
Buku Teks
Lynn, Greg
Nai Publishers, 2002
Buku Teks
Doubilet, Susan
Universe Pub. : [Distributed to the U.S. trade by St. Martin’s Press], 1997
Buku Teks