1. Business research methods
:COOPER, Donald R. - SCHINDLER, Pamela S. Business research methods. 10th ed. New York : McGraw-Hill/Irwin, 2008. 746 s. The McGraw-Hill/Irwin series in Operations and decision sciences. ISBN 978-007-126333-7. [Copy count : 1, currently available 1, at library only 0]