الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a50b0834b2069a16869cd3b6e7cc432fTesthttp://hdl.handle.net/2066/231686Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ed866fead030563b4d9ea59130e00061Testhttps://hdl.handle.net/2078.1/220057Test