Filtering by: Creator Hijji, Hasan Hamza Remove constraint Creator: Hijji, Hasan Hamza Date 2022 Remove constraint Date: 2022 Funder Umm Al-Qura University Remove constraint Funder: Umm Al-Qura University Resource type http://purl.org/coar/resource_type/c_db06 Remove constraint Resource type: http://purl.org/coar/resource_type/c_db06