De Dipak and Jirli, B.  <br/><br/>
Extension Research Methodology 

 - 1 st 
 -  Agrotech Pubkushing Academy, Udaipur  2015 
<br/><br/><label>ISBN: </label>978-93-80012-27-8 
<br/><br/><label>Dewey Class. No.: </label>001.43DE