Janda, Kenneth, author
Cengage Learning, 2012
Buku Teks
Kenneth Janda, Jeffrey M. Berry, Jerry Goldman, Deborah J. Schildkraut, Paul Manna
Cengage Learning, 2018
Buku Teks
United Nations Departemen of Public Information, 1990
Buku Teks
Ebert, Ronald J., author
Prentice-Hall, 2009
Buku Teks
Donald A Ball, McCulloch, Jr., Wendell H., J Michael Geringer, Michael S Minor, Jeanne M NcNett
McGraw-Hill, Irwin, 2008
Buku Teks