TY  - SER
ED  -  International Study Group for Mathematics Learning
ED  -  Structural Learning Society.
TI  -  Journal of structural learning
SN  -  0022-477
U1  -  510.705 
CY  -  New York : 
PB  -  Gordon and Breach science publishers
KW  -  Mathematics
KW  -  Periodicals
KW  -  Education
ER  -