Dandiya, P.C. <br/><br/>
How to practise GMPS 
P.P. Sharma. 
 - 2nd ed. 
 - Agra  Vandana Publications  1995 
 - xiv, 597p., 22cm. 
<br/><br/><label>Dewey Class. No.: </label>615.10068  / S34H