TY  - BOOK
AU  - Liljedahl, Peter||Santos-Trigo, Manuel||Malaspina, Uldarico||Bruder, Regina
TI  - Problem Solving in Mathematics Education
KW  - Mathematics Education: Learning and Instruction
UR  - https://library.oapen.org/bitstream/20.500.12657/27743/1/1002262.pdf||https://library.oapen.org/bitstream/20.500.12657/27743/1/1002262.pdf||https://library.oapen.org/bitstream/20.500.12657/27743/1/1002262.pdf
ER  -