Kumar, Ranjit. <br/><br/>
Research methodology :  a step-by-step guide for beginners / 
Ranjit Kumar. 
 - 4th edition 
 - London ;   SAGE publication Ltd,   2014. 
 - xvii, 399 pages :   color illustrations, charts ;   23 cm.  
<br/><br/>Includes bibliographical references and index.  
<br/><br/><label>ISBN: </label>9781446269978 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Research--Methodology.