TY  - BOOK
AU  - MaLourdes P.Dela Cruz
AU  - Celedonia R.Hermano
TI  - MATH IN A CHALLENGING WORLD
SN  - 9717194905
U1  - 510 
PY  - 2017///
CY  - Marikina City
PB  - Instructional Coverage System Publishing, Inc.
KW  - Mathematics
ER  -