الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f95fc59ad7a1ba2d7821fb7b3b306a3dTesthttps://doi.org/10.5414/cp202052Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::41e72a9eb1acfda1bf267d11deb6b55dTesthttps://doi.org/10.5414/cp201462Test