الوصول الحر: https://doaj.org/article/f17a49e8968344b6832c97ba8283d251Test
الإتاحة: https://doi.org/10.18470/1992-1098-2023-2-33-43Testhttps://doi.org/10.18470/1992-1098-2023-2Testhttps://doi.org/10.24411/1993Test‐3916‐2019‐10054https://ecodag.elpub.ru/ugro/article/view/2824Test