Lanyi, George A.
Random House , 1966
Buku Teks
Lerner, Max
Simon and Shuster, 1962
Buku Teks
Elliot, Florence
Penguin Books, 1957
Buku Referensi
edited by G. John Ikenberry
Cambridge University Press, 2014
Buku Teks
D`anieri, Paul J., 1965-
Cengage Learning, 2017
Buku Teks