Rao, P.S.S.Sundar <br/><br/>
Introduction to biostatistic & research methods 
P.S.S.Sundar Rao 
 - 4th ed. 
 - New Delhi  Printice hall  2006 
 - xiv, 262p. 
<br/><br/><label>ISBN: </label>8120328760  225.00