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اﻟﺪﻟﻴﻞ اﻟﻌﻤﻠﻲ ﻟﻠﺘﻌﻠﻢ اﻟﻘﺎﺋﻢ ﻋﻠﻰ اﻟﻤﺸﺮوﻋﺎت 132
BCG 94
QuickMBA2010
Validityreliability 1 44
Validityreliability
HammersleyandAtkinson,1995;Lincolnand
reliabilityGuba,1985