Das, Ranjan  & Das, Papri N <br/><br/>
Instant medical biostatistics 

 - Ane books, New Delhi  2009 
 - xii,172 
<br/><br/><label>ISBN: </label>978-81-8052-023-5 
<br/><br/><label>Dewey Class. No.: </label>519.502 Das/Das