Gaya APA
Riyanto, S.
(2011).
The Textbook Of English Grammer
(
Cet.1)
.
Yogyakarta:
Pustaka Widyatama.
Gaya MLA
Riyanto, Slamet.
"The Textbook Of English Grammer".
Cet.1
Yogyakarta:
Pustaka Widyatama,
2011.
Printed Book.