الوصول الحر: https://doaj.org/article/2a4f85e0ea23401184bbf2d2b5598d6bTest
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a4878b74dde2d5fdf1d4965f7870ae06Testhttps://doi.org/10.20473/amnt.v5i3.2021.276-283Test