Collis, Jill Business research: A practical guide for undergraduate and postgraduate students - 4th ed. - New York Macmillan Publishers 2014 - xxiii, 351 p. 3237 08/08/2018 APD18/1081224 17/08/2018 Main Budget ISBN: RS599 Dewey Class. No.: 658.0072 C691B(4)