TY  - BOOK
AU  - Corazon S. Aspuria
AU  - Liberty Gay C. Manalo, Ma. Felisa A. Molina, and Ederlina B. Maniquiz-Sagales
TI  - Differential Calculus: A work text 
SN  - 978-621-427-049-1
U1  - Fil. 515 D56 C2019 
PY  - 2019///
CY  - Intramuros Manila, Philippines: 
PB  - Unlimited Books Library Services & Publishing Inc.; 
ER  -