000 00329nam a2200133Ia 4500
008 230118s9999||||xx |||||||||||||| ||und||
082 _a530
082 _bKUM/P
100 _aaravind
_bkumar
100 _ba.nmaheshwari
245 0 _aphysics
260 _anew delhi
260 _bnational council of educational research and training
999 _c2330
_d2330