Sekaran, Uma. Research methods for business: skill building approach / by Uma Sekaran and Roger Bougie. - 5th ed. - New Delhi : Wiley India , 2012. - xx;468p. ; 23.5 cm. ISBN: 9788126531318 Subjects--Topical Terms: Research Methods.Research Design.Research Process.Data Collection Method. Dewey Class. No.: 001.42 / SEKU