000 00243 a2200097 4500
020 _a9788174823809
100 _aKUMAR, ALOK
245 _aUPKAR'S CSIR-UGC NET/JRF/SET MATHEMATICAL SCIENCES
260 _bUPKAR PRAKASHAN, AGRA
_c2023
942 _cBK
999 _c87556
_d87556