TNPSC group - II : CSSE - I 
Sakthi 
 - Chennai  Sakthi Publishing House  2011 
 - various pages, ; 28 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>General Knowledge
<br/><br/><label>Dewey Class. No.: </label>153.94 SAK