Gaya APA
Evans, Desmond W.. (1989).
Improving English skill .
Jakarta:
Binarupa Aksara.
Gaya Chicago
Evans, Desmond W..
Improving English skill.
Jakarta:
Binarupa Aksara,
1989.
Text.
Gaya MLA
Evans, Desmond W..
Improving English skill.
Jakarta:
Binarupa Aksara,
1989.
Text.
Gaya Turabian
Evans, Desmond W..
Improving English skill.
Jakarta:
Binarupa Aksara,
1989.
Print.