000 00307nam a2200121Ia 4500
008 230223s9999 xx 000 0 und d
082 _a27/2020
100 _aSuyash Gangwar
245 0 _aCenter For Non-Visual Education And Research, Delhi
260 _c2020
502 _cProf.Rajiv Kacker
942 _cTH
999 _c23061
_d23061