Predstavenie autora Andre Castagna:

Doterajšie vydané knihy od Andre Castagna:

Preskúmajme regentov: Geometria Revised Edition - Let's Review Regents: Geometry Revised...
Barrons Education Series
Barron's Let's Review Regents: Geometria 2021...
Preskúmajme regentov: Geometria Revised Edition - Let's Review Regents: Geometry Revised Edition
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