Gupta, C.B. and Gupta, Vijay <br/><br/>
An Introduction to statistical Methods 

 - 23rd, revised & reprint. 
 - New Delhi  Vikash Publishing Pvt. Ltd.  2022 
 - x, 829p. 
<br/><br/><label>ISBN: </label>9788125916543 
<br/><br/><label>Dewey Class. No.: </label>519.5  / GUP-STA