ICMI-Second East Asia Regional Conference on Mathematics Education and Ninth Southeast Asian Conference on Mathematics Education, 27–31 May 2002 Takahashi, Akihiko (高橋　昭彦; DePaul University). "."
ICMI-Second East Asia Regional Conference on Mathematics Education and Ninth Southeast Asian Conference on Mathematics Education, 27–ngày 31 tháng 5 năm 2002 Takahashi, Akihiko (高橋　昭彦; DePaul University). "."