000 00309nam a2200121Ia 4500
005 20260329235236.0
008 260329s9999||||xx |||||||||||||| ||und||
082 _a371.3078 V823E
100 _aUnnati, Vishnoi
245 0 _aEducation Technology
260 _aNew Delhi
_bK.S.K. Publidhers
_c2016
942 _cBK
999 _c279776
_d279776