INDIRA GANDHI NATIONAL OPEN UNIVERSITY PRINCIPLES OF MANAGEMENT AND INFORMATION SYSTEMS ENG - R - NEW DELHI INDIRA GANDHI NATIONAL OPEN UNIVERSITY 2011 - 128P PB - INDIRA GANDHI NATIONAL OPEN UNIVERSITY . ISBN: 8126626526 Subjects--Topical Terms: --INDIA LC Class. No.: 658 IGN P Dewey Class. No.: 658 IGN P