Greenfield, James M.
John Wiley & Sons, 2001
Buku Teks
Taft, J. Richard
McGraw-Hill, 1967
Buku Teks
Lauffer, Armand
sage Publications, 1985
Buku Teks
Hopkins, Bruce R., 1932-
John Wiley, 1980
Buku Teks
Clark, Helen
Institute of South East Asia Studies, 2012
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