Samajik vigyan : Hamare atit- 3, Bhag 1 : Kaksha 8 ke liye itihas ki pathyapustak. 
NCERT 
 - New Delhi, India  National Council of Educational Research and Training  2008 
 - 77p. 
<br/><br/><label>ISBN: </label>978-81-7450-834-8 
<br/><br/><label>Source: </label>Reference