000			00324nam a2200133Ia 4500
005			20250626141851.0
008			241013s9999 xx 000 0 und d
020			_aNMIT005535
100			_aSharma S.R.
245		0	_aEffective Classroom Teaching
260			_bBureau of Indian Standards
300			_a99
942			_cBK
999			_c1371 _d1371