TY  - BOOK
AU  - Hagos, Luisito C.
AU  - 
AU  - Herrera, Rubie R.
AU  - Ymas, Sergio, Jr.
AU  - Enriquez, Jay P.
TI  - Plane trigonometry: : with focus on more practical applications in trigonometry
U1  - 516.242 H123 2012 
CY  - Manila
PB  - Ymas Publishing House.
KW  - Plane trigonometry-Study and teaching
ER  -