Dunning, John H
Addison-Wesley , 1992
Buku Teks
Cutler, Lloyd N.
Foreign Policy Association , 1978
Buku Teks
Daniels, John L
McGraww-Hill, 1993
Buku Teks
Daniels, John D.
Addison-Wesley , 1986
Buku Teks
edited by Xiaolan Fu, Pervenz N. Ghauri, Juha Vaatanen
Emerald, 2017
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