000 00449nam a22001817a 4500
003 DBCGL
005 20161128120642.0
008 161128b xxu||||| |||| 00| 0 eng d
040 _aDBCGL
082 _a371.3078
_bRAO / E
100 _aRao, Usha
245 _aEducational technology
_cUsha Rao
250 _a3rd Ed.
260 _aMumbai
_bHimalaya Publishing
_c2001
300 _a277 p
653 _aEducational technology, education
942 _cBOOK
999 _c546
_d546