Filtering by: Creator Beshr, Mahmoud Hassan Shaaban Mansour Remove constraint Creator: Beshr, Mahmoud Hassan Shaaban Mansour Date 2014 Remove constraint Date: 2014 Date 2015 Remove constraint Date: 2015 Resource type http://purl.org/coar/resource_type/c_db06 Remove constraint Resource type: http://purl.org/coar/resource_type/c_db06