الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::12a238959e4e07d80998f695060ba8adTesthttps://doi.org/10.2478/aucft-2021-0002Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7d789e443b9358b6928c25a9ea867769Testhttps://doi.org/10.2478/aucft-2020-0013Test