Department of State, 1949
Buku Teks
Meita Fitriani, author
2012
UI - Tesis (Open)
Magdoff, Harry, author
Modern Reader Paperbacks, 1969
Buku Teks
by Frank B. Feigert ... [et al.] ; edited by Don C. Piper and Ronald J. Terchek
American Enterprise Institute for Public Policy Research, 1983
Buku Teks
Xie, Yixian, 1923-
Henan Renmin Chubanshe, 1998
Buku Teks