الوصول الحر: http://arxiv.org/abs/2310.02351Test
الوصول الحر: http://arxiv.org/abs/2211.06463Test
الوصول الحر: http://arxiv.org/abs/2207.07341Test
الوصول الحر: http://arxiv.org/abs/2108.04346Test
الوصول الحر: http://arxiv.org/abs/2104.03735Test
الوصول الحر: http://arxiv.org/abs/1906.00093Test
الإتاحة: https://doi.org/10.1093/geroni/igad104.2759Testhttps://academic.oup.com/innovateage/article-pdf/7/Supplement_1/856/54742756/igad104.2759.pdfTest
الإتاحة: https://doi.org/10.1093/geroni/igad104.2629Testhttps://academic.oup.com/innovateage/article-pdf/7/Supplement_1/815/54745989/igad104.2629.pdfTest
الإتاحة: https://doi.org/10.1080/15389588.2023.2247110Test
الإتاحة: https://doi.org/10.1016/j.trip.2023.100939Testhttps://api.elsevier.com/content/article/PII:S2590198223001860?httpAccept=text/xmlTesthttps://api.elsevier.com/content/article/PII:S2590198223001860?httpAccept=text/plainTest