TY  - BOOK
AU  - Joel T. Lao 
TI  - Pre-Calculus: for grade 11 senior high school science, technology, engineering, and mathematics (STEM)
SN  - 978-621-406-217-1
U1  - Fil. 516.5 L29 C2019 
PY  - 2019///
CY  - Intramuros Manila, Philippines: 
PB  - Mindshapers Co., Inc.,; 
ER  -