000 00279nam a22001217a 4500
082 _a610.7
100 _aGopichandran, L
245 _aEssentials Communication & Education Technology
250 _a2 nd
260 _aN.Delhi
_bCBS Pub.
300 _a304 Pages
942 _2ddc
_cBK
999 _c3879
_d3879