Milkovich, George T., author
Tex Business Publications , 1985
Buku Teks
Irwin, 1989
Buku Teks
Strauss, George, author
Prentice-Hall, 1980
Buku Teks
Strauss, George, author
Prentice Hall of India, 1985
Buku Teks
edited by M. Ronald Buckley, Anthony R. Wheeler, Jonathon R. B. Halbesleben
Emerald, 2017
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