الوصول الحر: https://doaj.org/article/66a5b6a22d784c2fa9b68a98ee41f0b6Test
الإتاحة: https://doi.org/10.1080/07357907.2022.2131808Testhttp://hdl.handle.net/10044/1/100053Test
الإتاحة: http://ntur.lib.ntu.edu.tw/handle/246246/198998Test