Kumar, Ranjit. Research methodology : a step-by-step guide for beginners / Ranjit Kumar. - 4th ed. - Los Angeles : SAGE, c2014. - xxvii, 399 p. : ill. ; 23 cm. ISBN: 9781446269978 (pbk.) Subjects--Topical Terms: Social sciences--Research--Methodology Dewey Class. No.: 300.72 / Ku96R 2014