Gaya APA
Affandi, R.
(2011).
The Textbook of English Crammar
.
Yogyakarta:
Pustaka Widyatama.
Gaya MLA
Affandi, Rustam.
"The Textbook of English Crammar".
Yogyakarta:
Pustaka Widyatama,
2011.
Buku.