TY  - BOOK
A1  - Polya , George , 7881-
TI  - Mathematical discovery , on understanding and tyeaching problem Solving . combined ed
PB  - كتابخانه مركزی و مركز اسناد دانشگاه الزهراء (س)
SN  - 72325737
UR  /book/72325737/Mathematical-discovery-on-understanding-and-tyea/
ER  -