00686nam a22002057i 450000500170000000800410001702200140005804100080007210000160008024501490009665000170024565000170026265000290027965000260030865000200033465300170035465500150037170000180038677300760040420141212092958.0890301s1989    sp     gr     000 0 spa c  a1944-7558  aeng1 aACTON, H.M.10aINTERACTION AND PERFORMANCE WITHIN COOPERATIVE GROUPS: EFFECTS ON NONHANDICAPPED STUDENTS' ATTITUDES TOWARD THEIR MILDLY MENTALLY RETARDED PEERS14aCompañeros14aDiscapacidad14aDiscapacidad intelectual14aInclusión educativa14aSocialización10aDiscapacidad 4aDocumental1 aZARBATANY, L.0 tAMERICAN JOURNAL ON MENTAL RETARDATIONgVol. 93, no. 1 (1988), p. 16-23