الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dc5923473861a3868da6680831fe2c26Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b244a2465aeff5cd7d5e9ef6b7ed366cTest