Gurjit Kuar <br/><br/>
Data hiding using PVD and 3D playfair cipher 
Gurjit Kuar 
 - Dr.B.R.  A 
 - Jalandhar  Dr.B.R.  Ambedkar  National institute of  2015 
 - xii 55p 
<br/><br/><label>Dewey Class. No.: </label>5.82  / GU-D