Kumar, Ranjit Research methodology : a step-by-step guide for beginners / Kumar Ranjit. - 5th ed. - Los Angeles : SAGE, 2019. - xxi, 503 p. ISBN: 9781526449900 9781526449894 Subjects--Topical Terms: Social sciencesResearch Methodology Research Dewey Class. No.: 001.42 / KUM