Kumar, Ranjit Research Methodology : a step-by-step guide for beginners - 3rd ed. - New Delhi SAGE Publications 2011 - xxi, 415 p. ill. ; 25 cm. Includes index. ISBN: 9788132106487 Subjects--Topical Terms: 1. Education -- Research -- Methodology. 2. Case method. Dewey Class. No.: 301.0723