الوصول الحر: https://doaj.org/article/d3b11f884e50459ca0308cca65a3f79eTest
الوصول الحر: https://doaj.org/article/5da6949b0ceb44f283468a505fb1fd6cTest
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_________::bf26036b7ac62ae0629d1dbc7bbc24e4Testhttps://doi.org/10.1002/ar.23280Test