TY  - BOOK
AU  - Florinda V.Angeles
AU  - Rowena B.Malasig
TI  - Math in a challenging world
SN  - 9717194882
U1  - 510 
PY  - 2017///
CY  - Marikina City
PB  - Instructional Coverage System Publishing, Inc.
KW  - Mathematics
ER  -