000 00267nam a2200109Ia 4500
008 230421s9999 xx 000 0 eng d
100 _aRai (Kamala)
245 0 _aDiffusion Process of Educational Innovations
250 _aI
260 _bNPC, Agra
942 _2ddc
_cBED
999 _c21159
_d21159