000 00547nam a2200181 a 4500
005 20210219153204.0
008 991125n 000 0 eng u
035 _aUPN01000083227
100 _aMerrill, M. David
222 0 _aEDUCATIONAL TECHNOLOGY
245 0 _aInstructional transaction theory : knowledge relationships among processes, entities, and activities
300 _a5-16
362 _a1993 33, no. 4
653 0 _aDISEÑO ASISTIDO POR ORDENADOR
653 0 _aENSEÑANZA PROGRAMADA
904 _aAC
_b021038
905 _aArticulo
999 _c70595
_d70595