000 00247nam a22001217a 4500
003 SGT
082 _a370
_bSIN
100 _aSINGH, Y.K
245 _aRESEARCHH METHODOLOGY
260 _aDELHI
_bAPH PUB
_c2020
300 _a352
942 _2ddc
_cBK
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999 _c19834
_d19834