الوصول الحر: https://explore.openaire.eu/search/publication?articleId=od_______325::174ecf2b5ab3be510d1654da2dd1daa1Testhttps://escholarship.org/uc/item/1300p8jvTest
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::0936d5b23ca1b9d50e882a25030d5276Testhttps://escholarship.org/uc/item/7k4023s9Test