Kumar, Ranjit Research methodology : a step-by-step guide for beginners / Ranjit Kumar - 3rd ed. - New Delhi : Pearson India, 2011. - 366 p. : ill. ; 25 cm. Includes bibliographical references and index. ISBN: 9781849203012 Subjects--Topical Terms: Research Methodology Dewey Class. No.: 001.42 KUR