Gaya APA
Ahmadi, Rulam. (1993).
Introduction to English grammar .
Yogyakarta:
Kanisius.
Gaya Chicago
Ahmadi, Rulam.
Introduction to English grammar.
Yogyakarta:
Kanisius,
1993.
Text.
Gaya MLA
Ahmadi, Rulam.
Introduction to English grammar.
Yogyakarta:
Kanisius,
1993.
Text.
Gaya Turabian
Ahmadi, Rulam.
Introduction to English grammar.
Yogyakarta:
Kanisius,
1993.
Print.