Prentice-Hall, 1966
Buku Teks
Lincoln, George A., author
Prentice-Hall, 1957
Buku Teks
Hitch, Charles J., author
Harvard University Press, 1961
Buku Teks
Hitch, Charles J., author
Harvard University Press, 1963
Buku Teks
Hitch, Charles J., author
Harvard University Press, 1961
Buku Teks