Khanna A. K. Mass communication and research (3 Vol. set) - New Delhi Metro Publication 2017 - v,250,248,250p. cm. ISBN: INR 5985.00 Standard No.: 136312 Source: 40, 17/11/2017, Kiran Book Service Textual Subjects--Topical Terms: Hindi Dewey Class. No.: 4, Q7.1-Q7.3