Paulus Gerdes
Paulus Gerdes, African Pythagoras. A Study in Culture and Mathematics Education. Maputo, Instituto Superior Pedagogico, Mocambique 1994.
Alexander Skutin,Tran Quang Hung, Antreas Hatzipolakis, Kadir Altintas: Cosmology of Plane Geometry: Concepts and Theorems> ΨΗΦ. C...
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