Introduction to statistics. 10th. Edition. 
Giri, P. K 
 - 10th. Edition. 
 - Kolkata  Academic press  2017 
 -  xvi, 589p. 
<br/><br/><label>ISBN: </label>978-9-383-42096-4 
<br/><br/><label>Dewey Class. No.: </label>519.2 GIR