Huxley, Aldous
Bantam, 1958
Buku Teks
Sudarsanam, P. S., author
Prentice-Hall, 1995
Buku Teks
McNamara, Robert S., 1916-2009, author
Harper & Row, 1968
Buku Teks
Walters, John
Thomas Y. Crowell Company, 1964
Buku Teks
Bank, John, author
Prentice-Hall, 2000
Buku Teks