Yamada Takumi
Collegamenti esterni
Libri di Yamada Takumi

Yamada Takumi: Speed Math Bible - Transform Your Brain into an Electronic Calculator and Master the Mathematical Strategies to Triumph in Every Challenge (2014, Lulu Press, Inc.)

Yamada Takumi: Speed Math Bible - Transform Your Brain into an Electronic Calculator and Master the Mathematical Strategies to Triumph in Every Challenge (2014, Lulu Press, Inc.)