الوصول الحر: https://doaj.org/article/5dbe196afab74e64a1cc4fa6b205d580Test
الوصول الحر: https://doaj.org/article/43f9bf20a9764ad6ad28cbede33fad0dTest
الوصول الحر: https://doaj.org/article/b46ba0f8cbbc40a0b1d571dcf0e27033Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7b855f453faee38753756b2cca2227f9Testhttp://europepmc.org/articles/PMC7047147Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_________::5da8de3ab6d140efb1d4dc39b2e4086dTesthttps://doi.org/10.1016/bs.abr.2021.01.011Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4b89b9a02267ed86bff1e2cdb17d1f3dTesthttp://hdl.handle.net/10261/196532Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_________::bcf183d28b2ec6dd5f7fb0b54f5e2021Testhttps://doi.org/10.1016/s0065-2296Test(16)30016-7
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_________::4d48dfcd5bb1b11cab415cf3ef899904Testhttps://doi.org/10.1016/s1572-5995Test(02)80022-9