الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::72bddd959bd2eada59bb21af8e0af61cTesthttp://hdl.handle.net/10281/391688Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::08bd93a91e0481c2c9d1010125e1bfdbTest