Foreign Languages Publishing House, 1957
Buku Teks
Rothstein, Andrew
Penguin Books , 1950
Buku Teks
Mongait, Alexander
Foreign Languages Publishing House, 1959
Buku Teks
Pacelle, Richard L., Jr.
Westview Press, 1991
Buku Teks
Schubert, Glendon A., Jr
University of Minnesota Press, 1956
Buku Teks