الإتاحة: https://doi.org/10.4236/ojped.2020.101006Test
الإتاحة: https://doi.org/10.4236/ojped.2020.101005Test
الإتاحة: https://unilim.hal.science/hal-03019880Test
الإتاحة: https://hal-unilim.archives-ouvertes.fr/hal-03019880Test
الإتاحة: https://doi.org/10.1016Test/j.motcer.2019.06.002https://api.elsevier.com/content/article/PII:S0245591919300639?httpAccept=text/xmlTesthttps://api.elsevier.com/content/article/PII:S0245591919300639?httpAccept=text/plainTest
الإتاحة: https://www.bibliosante.ml/handle/123456789/3198Testhttps://library.adhl.africa/handle/123456789/11234Test
الإتاحة: https://www.bibliosante.ml/handle/123456789/2375Testhttps://library.adhl.africa/handle/123456789/10580Test