000			00310nam a2200121Ia 4500
100			_aKhan, M. I. and Sharma, S. R.
020			_a81-85475-97-0
942			_cBK
245			_aInstructional technology media and theory
260			_aKanishka publishers, New Delhi _c1993
082			_a384 Kha Sha
300			_a340p
999			_c37383 _d37383