Groundwork of mathematical probability and statistics. 7th. Edition. 
Gupta, A 
 - 7th. Edition. 
 - Kolkata  Academic press  2015 
 -  376p. 
<br/><br/><label>ISBN: </label>978-9-383-42065-0 
<br/><br/><label>Dewey Class. No.: </label>519.2 GUP