الوصول الحر: https://doaj.org/article/86b8ba8708dd4890b5a54bff0d0f41b7Test
الوصول الحر: https://doaj.org/article/9fc4acdd10ac4f56b290ee9197304544Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::21aff395780b75e1c417a8d45a54c672Testhttps://doaj.org/article/86b8ba8708dd4890b5a54bff0d0f41b7Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::73437911eab22c127a4c98bf0dc19bddTest