TY  - BOOK
TI  - Proficiency workbook IV: advanced algebra , trigonometry and statistics 
SN  - 9714808022
U1  - 512.13 
PY  - 2006///
CY  - Makati City
PB  - Diwa Learning Systems Inc.
KW  - Advanced Algebra
KW  - Trigonometry
KW  - Statistics
ER  -