Hodgetts, Richard M., author
Harcourt Brace Jovanovanovich, 1988
Buku Teks
Stoner, James A.F. (Arthur Finch), author
Prentice Hall International, 1978
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Robbins, Stephen P., author
Pearson - Prentice Hall, 2009
Buku Teks
Robbins, Stephen P., author
Pearson Prentice Hall, 2014
Buku Teks
Robbins, Stephen P., author
Pearson, 2016
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