edited by Gerald L. Mandell, John E. Bennett and Raphael Dolin
Churchill Livingstone, 1995
Buku Referensi
by Barbara Kozier ... [and others]
Prentice-Hall, 2004
Buku Teks SO
edited by Manfred E. Wolff
John Wiley & Sons, 1995
Buku Teks
edited Kenneth F. Wallis
An Elgar Collection , 1994
Buku Teks
Jesse, Kenneth E.
Harcourt Brace Jovanovich, 1987
Buku Teks