Gaya APA
Riyanto, Slamet. (2011).
The Textbook of English Grammar .
Yogyakarta:
Pustaka Widyatama.
Gaya Chicago
Riyanto, Slamet.
The Textbook of English Grammar.
Yogyakarta:
Pustaka Widyatama,
2011.
Reference.
Gaya MLA
Riyanto, Slamet.
The Textbook of English Grammar.
Yogyakarta:
Pustaka Widyatama,
2011.
Reference.
Gaya Turabian
Riyanto, Slamet.
The Textbook of English Grammar.
Yogyakarta:
Pustaka Widyatama,
2011.
Reference.