Kothari, C. R. Research methodology methods & techniques / [Book] : C.R. Kothari. - 2nd rev. ed. - New Delhi : New Age International (P) Ltd., Publishers, c2004. - xvi, 401 p. : ill. ; 24 cm. All. ISBN: 9788122415223 Subjects--Topical Terms: Social sciences--Research.Research--Methodology. Dewey Class. No.: 001.42