Seoul National University Press, 1980
Buku Teks
Evans, Luther H.
Oceana Publications, Inc., 1966
Buku Teks
United Nations. Economic Commission for Asia and the Far East. Seventh Group
Economic and Social Commission for Asia and the Far East , 1970
Buku Teks
Pauker, Guy J., author
McGraw-Hill, 1977
Buku Teks
Chang, Carsun
Bookman Associates, 1962
Buku Teks