Challenges to internal security  of India :  A courseware / 
Ashok Kumar 
 - Chennai :  Mc Graw Hill Education  (India ) private limited,  2026. 
 - 326p. 
<br/><br/><label>ISBN: </label>9789364443791 
<br/><br/><label>Dewey Class. No.: </label>355.033054  / ASH.C