000 00231nam a22001217a 4500
003 SGT
082 _bSIN
100 _aSINGH, Y.K.
245 _aMICRO TEACHING
260 _aDELHI
_bAPH
_c2019
300 _a253
942 _2ddc
_cBK
999 _c19900
_d19900