Résumé de section
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https://www.univ-soukahras.dz/ar/publication/download-article/1008/e8fa8fb58005894
http://dlibrary.univ-boumerdes.dz:8080/bitstream/123456789/6815/1/Boukezzata%20Salim%201.pdf
https://www.univ-soukahras.dz/ar/publication/download-article/2861/a8bae292dd919d6
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https://archive.org/details/20210124_20210124_0655/page/n99/mode/2up
https://www.researchgate.net/publication/340924290_alaqtsad_aldwly_-_mfatyh_allaqat_alaqtsadyt_aldwlyt/citation/download