الإتاحة: https://doi.org/10.1016/j.quascirev.2022.107434Testhttp://hdl.handle.net/10261/357998Test
الإتاحة: http://hdl.handle.net/10138/352307Test
الإتاحة: https://doi.org/10.5281/zenodo.5643130Testhttps://doi.org/10.5281/zenodo.5643129Testhttps://zenodo.org/record/5643130Test