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ﻗﺮاءة ﻧﻈﺮية ﺣﻮل المكانة المحورية ﻟﻠﻜﻔﺎءات اﻟبﺸﺮية ﺿﻤﻦﺑﺮاﻣﺞ اﻟﺘﻨﻤﻴﺔالمستدامة Theoretical interpretation of the central position of human competencies within sustainable development programs