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A study of the understanding of the basic chemical concepts in the Egyptian secondary school

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1. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.388847

Identifer	oai:union.ndltd.org:bl.uk/oai:ethos.bl.uk:388847
Date	January 1984
Creators	El-Gendy, Omnia El-Sayed
Publisher	Cardiff University
Source Sets	Ethos UK
Detected Language	English
Type	Electronic Thesis or Dissertation