41. Problem-solving through problems

Author:

Library: Central library and information center (Khorasan Razavi)

Subject: Problems, exercises, etc ، Mathematics,، Problem solving

Classification :
QA
43
.
L37
1983

46. What to solve?

Author:

Library: Central Library and Document Center of Shahid Chamran University (Khuzestan)

Subject: Problem solving.,Mathematics--Problems, exercises, etc

Classification :
QA
,
63
,.
C64
,
1990