Special education / 
Uttam Kumar Singh ; A.K. Nayak 
 - India :  Commonwealth Publishers,  2005. 
 - vi,311 p.: 21.6cm. 
<br/><br/>Includes index 
<br/><br/><label>ISBN: </label>8171694322 
<br/><br/><label>Dewey Class. No.: </label>C 371.9 Sin 2005