Gaya APA
Posner, M.. (1980).
Practice in english : M. Posner .
Hongkong:
Nelson.
Gaya Chicago
Posner, M..
Practice in english : M. Posner.
Hongkong:
Nelson,
1980.
Textbook.
Gaya MLA
Posner, M..
Practice in english : M. Posner.
Hongkong:
Nelson,
1980.
Textbook.
Gaya Turabian
Posner, M..
Practice in english : M. Posner.
Hongkong:
Nelson,
1980.
Textbook.