الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0723848cd4887e0f96d28a9f1819447cTest
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::082a9d1bd273ad5e8dbaf53d050157a8Test