Gaya APA
Khafid, M., Gunanto, .
(2010).
Active Mathematics for Elementary School Year 6 Sementer 1
.
Jakarta:
Esis.
Gaya MLA
Khafid, M.., Gunanto, .
"Active Mathematics for Elementary School Year 6 Sementer 1".
Jakarta:
Esis,
2010.
Text.