Gaya APA
flavel, L, P, J.
(2015).
happy champers teacher's edition grade 4
.
london:
macmillan education.
Gaya MLA
flavel, Lorena, Peimbert,diana, Jones,annette.
"happy champers teacher's edition grade 4".
london:
macmillan education,
2015.
BUKU.