Cauvery, R ; Nayak, Sudha ; Girija, M ; Meenakshi, R <br/><br/>
Research methodology 

 - S.Chand and company  New Delhi  2018 
 - viii,226 
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<br/><br/><br/>E 
<br/><br/><label>Universal Decimal Class. No.: </label>307.2  / Cau/