Gaya APA
Widarso, Wishnubroto. (2004).
Complete English Grammar (2004) .
Yogyakarta:
Kanisius.
Gaya Chicago
Widarso, Wishnubroto.
Complete English Grammar (2004).
Yogyakarta:
Kanisius,
2004.
Printed Book.
Gaya MLA
Widarso, Wishnubroto.
Complete English Grammar (2004).
Yogyakarta:
Kanisius,
2004.
Printed Book.
Gaya Turabian
Widarso, Wishnubroto.
Complete English Grammar (2004).
Yogyakarta:
Kanisius,
2004.
Printed Book.