Gaya APA
English for young learners. (2007).
Jakarta:
Bumi Aksara.
Gaya Chicago
English for young learners.
.
Jakarta:
Bumi Aksara,
2007.
Buku.
Gaya MLA
English for young learners.
.
Jakarta:
Bumi Aksara,
2007.
Buku.
Gaya Turabian
English for young learners.
Jakarta:
Bumi Aksara,
2007.
Buku.