الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bedea74689ac8c5b57e31ed5aaed9a64Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::26abf8634170b8f40414728beab8bfd4Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3830cf5d388286517f23a48fe5d2bb84Test