Sharma, S. D. <br/><br/>
Operations research / 
by S. D. Sharma 
 - 10th ed. 
 - Meerut :  Kedar Nath Ram Publishers,  1992. 
 - p.862 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Operations Research<br/>Research methodology
<br/><br/><label>Dewey Class. No.: </label>001.424   / SHA-O