الوصول الحر: https://doaj.org/article/ba9df92f5d314d9fb0a3929e0d70d62bTest
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fd49051fc31990ecac4989447332d217Testhttps://doi.org/10.18502/acta.v58i8.4587Test