Gaya APA
RIYANTO, S.
(2010).
Essentials of English Grammar For Fluent English
.
Hoboken, NJ:
PUSTAKA PELAJAR.
Gaya MLA
RIYANTO, SLAMET.
"Essentials of English Grammar For Fluent English".
Hoboken, NJ:
PUSTAKA PELAJAR,
2010.
Text.