000 00319nam a2200133Ia 4500
008 240508s9999 xx 000 0 und d
082 _a502.8
_bRPH
100 _aR Guptas
245 0 _aJoint CSIR-UGC NET Physical Sciences
260 _bRamesh
_c2023
300 _a202 pages
650 _aGeneral
942 _cENGLISH
999 _c500150
_d500150