Gaya APA
Abdulkadir, D., Uysal, A.
(c2003).
Doors to english grammar 2
.
Jakarta:
Yudhistira.
Gaya MLA
Abdulkadir, Dokme., Uysal, Abdullah.
"Doors to english grammar 2".
Jakarta:
Yudhistira,
c2003.
Text.