Sekaran, Uma Research methods for business : a skill-building approach / Uma Sekaran and Roger Bougie - 5th ed. - Chichester : John Wiley, c2009. - xx, 468 p. : ill. ; 24 cm. ISBN: 9780470744796 LCCN: Subjects--Topical Terms: BusinessResearchMethodology LC Class. No.: HD30.4 / .S435 2009