000 00471nam a22001577a 4500
003 OSt
005 20220830115704.0
008 220830b ||||| |||| 00| 0 eng d
020 _a817579203014
100 _a मंगल एस . के . , Mangal S. K .
245 _aशैक्षिक तकनीक , Educational Technology
260 _aMeerut
_bInternational Publishing House
300 _aPage No.468
650 _2India Education
942 _2ddc
_cBK
999 _c1896
_d1896