Cooper, Donald R.
Business research method
McGraw-Hill, 2008
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Cooper, Donald R.
Business research method
McGraw-Hill, 2008
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Cooper, Donald R.
Business research method
McGraw-Hill Education, 2014
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Saunders, Mark
Research methods for business students
Prentice-Hall, 2003
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Cooper, Donald R.
Business research methods
McGraw-Hill, 2006
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