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اﻟﻔﺼﻞ اﻟرابﻊ: أﻧﻮاع أدوات اﻟﻘﯿاس
اﻟﻔﺼﻞ اﻟرابﻊ
pBͳºA PAÊeC ©AËÂC ( Types of Measurement Tools " اﻟﺨﻄأ اﻟﻮحﯿد اﻟحﻘﯿﻘﻲ ھﻮ ذﻟﻚ اﻟذي ﻻ ﻧتﻌﻠﻢ ﻣﻨﮫ شﯿﺌا" ﺟﻮن باول
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