الإتاحة: https://doi.org/10.13102/sitientibus.vi48Testhttp://periodicos.uefs.br/index.php/sitientibus/article/view/9713Test
الإتاحة: https://periodicos.ufv.br/RCH/article/view/3090Test
الإتاحة: https://periodicos.ufrn.br/Revistadoceres/article/view/15127Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=od______3056::471c9998bffbfbc42f194dc54d2d6d22Test