TY - BOOK AU - Samiento, Felife M. AU - De Castro, Wilfredo N. TI - Pre-calculus for senior high school SN - 978-971-9654-56-8 AV - FIL QA 305 .S27 2017 PY - 2017/// CY - Manila : Unlimited Books Library Services and Pub. KW - Precalculus N1 - Includes reference ER -