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[Subject: Mathematics]
Translated by: RHISIART HINCKS
Translated in 59 languages
[Subject: Generalities]
Translated by: MATTEO INCERTI
Translated in 45 languages
Translated in 22 languages
Translated in 12 languages
- Trefniant credyd gyda banc
Translated in 10 languages
Translated in 4 languages