Rudramamba, B. Bhaskara Rao, Digumarti ed. <br/><br/>
Problems of teaching 

 - New Delhi  APH publ.  2004 
 - 203 
<br/><br/><label>ISBN: </label>8176487295 
<br/><br/><label>Dewey Class. No.: </label>371.102  RUD;1  R