Gaya APA
Understanding and using English grammer. (1993).
Jakarta:
Binarupa Aksara.
Gaya Chicago
Understanding and using English grammer.
2nd.
Jakarta:
Binarupa Aksara,
1993.
Buku.
Gaya MLA
Understanding and using English grammer.
2nd.
Jakarta:
Binarupa Aksara,
1993.
Buku.
Gaya Turabian
Understanding and using English grammer.
Jakarta:
Binarupa Aksara,
1993.
Buku.