TY  - BOOK
AU  - De Guzman,Danilo
AU  - Quintana,Corazon
TI  - Precalculus: with software applications for senior high school 
SN  - 9789719815068
U1  - 515 
PY  - 2017///
CY  - Quezon City
PB  - C & E Publishing, Inc.
N1  - Includes bibliographical references and index; Analytic geometry -- Sequences, series, and mathematical induction -- Trigonometry
ER  -