Kumar, Ranjit. Research methodology : a step-by-step guide for beginners / Ranjit Kumar. - 5th edition. - London : SAGE; 2019. - pages cm 22cm. ISBN: 9781526449900 (pbk.) 9781526449894 (hardback) LCCN: 2018952089 Subjects--Topical Terms: Research--Methodology. Dewey Class. No.: 001.4 / KUR