TY  - BOOK
AU  - Tungcab,Rodolfo G.
TI  - Trigonometry worktext
SN  - 9789717251516
PY  - 2013///
CY  - Manila
PB  - Grandbooks Publishing, Inc
KW  - Trigonometry
KW  - sears
N1  - References: p.103
ER  -