AN EMPIRICAL ANALYSIS ON EFFECT OF DIGITAL MARKETING ON CONSUMER BUYING BEHAVIOUR BY EKERUKE UNENABASI GODWIN ABUMBA02015001506 A DISSERTATION SUBMITTED TO THE SCHOOL OF POSTGRADUATE STUDIES AHMADU BELLO UNIVERSITY, ZARIA, IN PARTIAL FULFILMENT OF THE REQUIREMENTS FOR THE AWARD OF MASTERS DEGREE IN BUSINESS ADMINISTRATION AUGUST, 2019