Nagarazan, R. S., and Muralidharan, C. <br/><br/>
Statistical Data Book 

 - 2nd 
 - New Delhi  New Age International (P) Limited, Publishers  2001 
 - 48 
<br/><br/><label>ISBN: </label>9788122417784 
<br/><br/><label>Publisher. No.: </label> Sapna Book House  
<br/><br/><label>Subjects--Personal Names: </label> Statistics 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Statistics