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[Subject: Physics]
Translated by: ISAAC SMITH
Translated in 171 languages
[Subject: Generalities]
Translated by: ALPHONSE BAYINGANA
Translated in 59 languages
[Subject: Geology, Meteorology, Hydrology]
- ubunjalozwe
Translated in 42 languages
[Subject: Music]
Translated in 16 languages
[Subject: Law]
Translated in 9 languages