Lerner, Max, author
Simon and Schuster , 1962
Buku Teks
Lanyi, George A.
Random House , 1966
Buku Teks
Lerner, Max, author
Simon and Shuster, 1962
Buku Teks
Elliot, Florence, author
Penguin Books, 1957
Buku Referensi
edited by G. John Ikenberry
Cambridge University Press, 2014
Buku Teks