TY  - BOOK
TI  - Sourcebook on practical work for teacher trainers: high school mathematics III and IV, vol. 1 
SN  - 9715700578
PY  - 1999///
CY  - Diliman, Quezon City
PB  - UP ISMED
KW  - Mathematics
KW  - Study and teaching (Secondary)
KW  - Teacher training
KW  - Philippines
ER  -