الوصول الحر: https://doaj.org/article/62298b62562b4361a230d438cefc3180Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=pmid_dedup__::85aa208185ed0d7ec571cea0c4e5e8caTesthttp://europepmc.org/articles/PMC3684475Test
الوصول الحر: https://doaj.org/article/f224330402134d2385a004a4a89ff33eTest
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::28da49da269b10574aea4eab267cec72Testhttp://www.scopus.com/inward/record.url?eid=2-s2.0-84975885898&partnerID=MN8TOARSTest
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::4d3669c345147e392397967b7c8aa2f5Testhttp://www.scopus.com/inward/record.url?eid=2-s2.0-84855529825&partnerID=MN8TOARSTest
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=pmid_dedup__::0fdf66dfe5c462fc75f7863e211c8249Testhttp://www.scopus.com/inward/record.url?eid=2-s2.0-78449283507&partnerID=MN8TOARSTest