TY  - BOOK
AU  - Singh, Y. K.
AU  - Sharma T.K.
AU  - Upadhya Brijesh.
TI  - Educational technology: Management and planning 
SN  - 978-81-313-0366-5
U1  - 371.3 
CY  - New delhi
N1  - Includes bibliographical references and index
ER  -