Gaya APA
Charles, R, I.
(2004).
MATHEMATICS TEACHER'S EDITION GRADE 1 VOL. 2
.
ILLINOIS:
Pearson Education.
Gaya MLA
Charles, Randall, I..
"MATHEMATICS TEACHER'S EDITION GRADE 1 VOL. 2".
ILLINOIS:
Pearson Education,
2004.
Text.