Lekhashastra : Alabhkari sansthayin evam sazhedari khate : Kaksha 12 ke liye pathyapustak 
NCERT (New Delhi India) 
 - New Delhi, India  National Council of Educational Research and Training  2007 
 - viii,280p 
<br/><br/><label>ISBN: </label>81-7450-727-2 
<br/><br/><label>Source: </label>Reference