Huszar, George B. de (George Bernard), 1919-1968, author
Littlefield, Adams, 1959
Buku Teks
Morgenthau, Hans J., author
The University of Chicago Press, 1962
Buku Teks
Sudarsono, author
Reneka Cipta, 1995
Buku Teks
Bierstedt, Robert, author
McGraw-Hill, 1964
Buku Teks
edited by Margaret Park Redfield
The University of Chicago Press , 1963
Buku Teks