الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::09f29a0205e025847a193eb663ff9857Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9f650a0020e5b4680100e38f113c065cTest
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fcedfae35aafcdc6c5a33c40f841833cTest