الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::92d5e528be65029cb2766e2f072d0cb9Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dae1bf6f8d3812db4cd871e984f58e83Test