000 00306nam a2200121Ia 4500
008 240329s9999 xx 000 0 und d
020 _qpbk
082 _a621.3
_bPER
100 _aPeriyar University
245 0 _aBSC; Electronics/
_cPeriyar University
260 _bPeriyar University,
650 _aPhysics
999 _c202196
_d202196