الوصول الحر: https://doaj.org/article/d715274c09c14aa5807f9200f2c82a8fTest
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=pmid_dedup__::9b25f5e9d0203121e212f085005224afTesthttps://cris.maastrichtuniversity.nl/en/publications/a2e9a2b1-3a41-4424-be22-ff385ce33601Test