000 00280nam a22001217a 4500
082 _a610.7
100 _aKP Neeraja
245 _aTextbook of Communication and Education Technology
250 _aFirst
260 _aN.Delhi
_bJaypee
_c2023
300 _a723 Pages
942 _2ddc
_cBK
999 _c5998
_d5998