Samajik vigyan: Humare attit-3: Bhag 1, Kaksha 8 ke liye itihas ki patthya pushtak. 2 Vol. 
NCERT. New Delhi 
 - Dehradun, India  Kendriya Braille Press   2010 
<br/><br/><br/>Braille books 
<br/><br/><label>Source: </label>TextBook