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[Subject: Generalities]
Translated by: CHEHAIMI MOHAMAD
Translated in 46 languages
[Subject: Physics]
Translated by: GUEST USER
Translated in 20 languages
Translated in 7 languages
Translated in 5 languages
Translated by: HUSSEIN MAHMOUD
Translated in 1 languages
Translated by: OMAR DABBOUS
Translated in 113 languages
[Subject: Political Science]
Translated by: ROUCHDI ABDEL MAJID
Translated in 50 languages
Translated by: FARHAD PEZESHKI
Translated in 29 languages
Translated by: ROA TERRO
Translated in 10 languages