الوصول الحر: https://doaj.org/article/3d2bb88903f343a796e30f3436afd14fTest
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::88d7bc437082bb36a7e504aa7a0372b7Testhttps://tar.sljol.info/articles/8339Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c8cb4eb497ce9c4c88900a87e8afb80bTesthttps://tar.sljol.info/articles/8066Test