الوصول الحر: https://doaj.org/article/eb78080e2c434377aaa9e8a9291addefTest
الوصول الحر: https://doaj.org/article/cb46adf9cdcb43049cc7aa6a0929e203Test
الوصول الحر: https://doaj.org/article/c95eaedd27f041c49ac66eb991d82502Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_________::78470065677cefff4d5515b80603aecbTesthttps://doi.org/10.1016/j.gim.2022.01.240Test