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Translated by: CHEHAIMI MOHAMAD
Translated in 64 languages
[Subject: Generalities]
Translated by: OMAR DABBOUS
Translated in 22 languages
Translated by: ROUCHDI ABDEL MAJID
Translated in 15 languages
Translated by: ISAAC SMITH
Translated in 52 languages
[Subject: Physics]
Translated by: FARHAD PEZESHKI
Translated in 48 languages
Translated by: ROA TERRO
Translated in 3 languages