TY  - BOOK
AU  - Singh, Y.K.--
TI  - Instructional technology in education
SN  - 8176488372
U1  - Elem 372.358 Si643 2005 C.2 
PY  - 2005///
CY  - New Delhi
PB  - A.P.H publishing corporation
N1  - includes bibliographical references and indexes
ER  -