الوصول الحر: https://doaj.org/article/8e8ab90f67fc40c48d282eff9111c3a4Test
الإتاحة: https://doi.org/10.6084/m9.figshare.16862764.v1Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4ba966e9df4cb9ae355069fc741bcb3fTesthttps://doaj.org/article/8e8ab90f67fc40c48d282eff9111c3a4Test