Singh, Y.K. <br/><br/>
Educational technology :  teaching learning / 
by Y.K. Singh, T. K. Sharma and Brijesh Upadhya. 
 - ed. 
 - New Delhi :  A.P.H. Publishing,  2009. 
 - vi, 332 p. ;  cm. 
<br/><br/>Includes bibliography. 
<br/><br/><label>ISBN: </label>9788131303627 :  US$20 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational technology.<br/>Educational technology.