Robbins, Stephen P., author
Prentice-Hall, 1988
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Robbins, Stephen P., author
Pearson education, 2015
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Schermerhorn, John R., author
John Wiley & Sons, 2003
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Carroll, Stephen J., author
John Wiley & Sons, 1977
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Robbins, Stephen P., author
Pearson, 2017
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