000			00430nam a2200145 4500
003			OSt
008			220602b |||||||| |||| 00| 0 eng d
082			_a371.3 _bMAN
100			_aManzano,Maria Merino De
245			_aFeedback on student learning for instructional television in EL salvador
260			_bInformation Center on Instructional Technology,
300			_a27p.; _c18cm
650		0	_aSocial Sciences
942			_2ddc _cLM
999			_c140230 _d140230