Cooper, Donald R. Business research methods / Donald R. Cooper ; Pamela S. Schindler and Wittenberg University. - 12th ed. - Chennai : McGraw-Hill, c2014. - xxvi, 692 p. : ill. ; Includes references and index. ISBN: 9789353161194 (pbk.) Subjects--Topical Terms: Industrial management. Dewey Class. No.: 658.0072 / COO