GeoGebra : the new language for the third millennium GeoGebra International Journal of Romania - Galați : Zigotto, 2010- - vol. ; 24 cm - anual ISSN: 2068-3227 = GeoGebra = GGIJRO Source: 152843 Subjects--Topical Terms: Subjects--Geographic Terms: Index Terms--Genre/Form: publicație periodică Universal Decimal Class. No.: 51-7