Kenneth Janda, Jeffrey M. Berry, Jerry Goldman, Deborah J. Schildkraut, Paul Manna
Cengage Learning, 2018
Buku Teks
United Nations Departemen of Public Information, 1990
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Ebert, Ronald J.
Prentice-Hall, 2009
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by Donald A. Ball ... [and others]
McGraw-Hill Irwin, 2002
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Donald A Ball, McCulloch, Jr., Wendell H., J Michael Geringer, Michael S Minor, Jeanne M NcNett
McGraw-Hill, Irwin, 2008
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