Kothari, C. R. <br/><br/>
Research methodology   methods and techniques 
C R Kothari; Gaurav Garg 
 - 4th ed. 
 - New Delhi : )  New Age International (P)  2019. 
 - xxi, 458 pages :   illustrations (colour)   24 cm 
<br/><br/>Includes bibliographical references and index 
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<br/><br/><label>Subjects--Topical Terms: </label><br/> Research -- Methodology. <br/>Education