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Prentice-Hall, 2009
Buku Teks
Tyson, Shaum, author
Prentice-Hall, 2000
Buku Teks
Diadjeng Laraswati Hanindyani, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2008
UI - Tesis (Open)
Kreitner, Robert, author
McGraw-Hill, 2010
Buku Teks
Vecchio, Robert P., author
Dryden Press, 1995
Buku Teks