TY  - BOOK
AU  - Alfarez, Merle S.
TI  - MSA mental math: addition techniques 
SN  - 9789718740774
AV  - QA 101 .Al385 2011
PY  - 2011///
CY  - Quezon City, Philippines
PB  - MSA Publishing House
KW  - Examinations
KW  - Mathematics
KW  - Reviewer
ER  -