000 00291nam a2200157Ia 4500
100 _aAhuja, Ram
080 _a307.2
526 _dNTB
526 _aPG
366 _f#REF!
942 _cBK
245 _aResearch methods
260 _aRawat
_bJaipur
_c2019
300 _a454
546 _aE
999 _c57792
_d57792