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Filtering by: Creator Attia, Khalid Abd El-Aziz Remove constraint Creator: Attia, Khalid Abd El-Aziz Date 1999 Remove constraint Date: 1999 Type Thesis Remove constraint Type: Thesis Resource type http://purl.org/coar/resource_type/c_db06 Remove constraint Resource type: http://purl.org/coar/resource_type/c_db06

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