TY  - BOOK
AU  - Posamentier Alfred S
TI  - Creative Secondary School Mathematics: 125 Enrichment Units for Grades 7 to 12
SN  - 9789811240430
PB  - World Scientific
KW  - Mathematics
UR  - https://www.worldscientific.com/worldscibooks/10.1142/12373
ER  -